#include <ocsElecSignalStat.hh>

Public Member Functions
	ElecSignalStat (OptSignal oOptSignal2, Photodetector oPhotodetector2)
	Constructor without input file.
	ElecSignalStat (string InFileName, OptSignal oOptSignal2, Photodetector oPhotodetector2)
	Constructor that reads parameters from an input file.
	~ElecSignalStat (void)
void	SetUseAbsCurrentFlag (bool Value)
string	WriteTypeClockRecovery (void)
	Returns the type of the clock recovery method.
void	ClearElecSignalStat (void)
void	ClearGaussianPDFsMonteCarlo (void)
void	ComputePerformanceStatistics (void)
void	UpdatePerformanceStatistics (void)
void	ComputeEqualizedPerformanceStatistics (void)
void	UpdateEqualizedPerformanceStatistics (void)
cplx *	GetSignalTimeDomain (void)
int	GetBitFromString (int ii)
double	GetMinAmplitudeMargin ()
void	WriteFileEyeDiagram (string outFile)
void	WriteFileEyeDiagramFixedCLK (string outFile)
double	GetClockRecoveryTime (void)
double	GetClockRecoveryTimeBeforeTimeShift (void)
	See ElecSignalStat::ComputePerformanceStatistics().
double	GetClockTimeForMonteCarloEye (void)
double	GetClockCurrent (void)
void	OutputGaussianStatisticsFromMonteCarlo (string FileID)
void	SetTimeSlices (void)
void	ComputeAndOutputMomentsFromMonteCarlo (string FileID)
void	ComputeAveragePDFs (void)
void	WriteFilePDFTimeSlicesAndAveragePDFs (string FileID)
void	ComputeMinimumBERAndDecisionThreshold (string FileID)
void	WriteFilePairVectors (double x, double y, int dim, string OutFileName)
double	GetPowerMeanBit (int BitIndex)
double	GetPowerStdDevBit (int BitIndex)
double	GetQtBit0 (void)
double	GetQtBit1 (void)
double	GetBit0_PowerMax (void)
double	GetBit1_PowerMin (void)
double	GetBit0_PowerMean (void)
double	GetBit1_PowerMean (void)
double	GetBit0_PowerStdDev (void)
double	GetBit1_PowerStdDev (void)
double	GetElecTimeDomainSNR (void)
double	GetQ_Factor (void)
double	GetBitErrorRate (void)
double	GetBitErrorRate (double Q_Factor)
double	GetAmplitudeMargin (void)
double	GetMeanPower (void)
int	GetBitStringShift (void)
double	GetQtIsolatedBit0 (void)
	Statistics obtained using isolated zeros and ones.
double	GetQtIsolatedBit1 (void)
double	GetIsolatedBit0_PowerMax (void)
double	GetIsolatedBit1_PowerMin (void)
double	GetIsolatedBit0_PowerMean (void)
double	GetIsolatedBit1_PowerMean (void)
double	GetIsolatedBit0_PowerStdDev (void)
double	GetIsolatedBit1_PowerStdDev (void)
double	GetElecTimeDomainSNR_IsolatedBits (void)
double	GetQ_FactorFromIsolatedBits (void)
void	SetOptElecFiltersForGaussianStatistics (OptFilter oOptFilter, ElecFilter oElecFilter)
void	ResetOptElecFiltersForGaussianStatistics (void)
void	ResetOptElecFilterBandwidthsForGaussianStatistics (double FreqFWHM_OptFilter2, double f3dB_ElecFilter2)
void	CheckGaussianStatisticsInitialization (string CallingMethod)
double	GetMeanNoiseGaussianStatistics (double TotalNoiseSpectralDensity)
	Returns mean of noise <i_n> given by JLT05_22.
double	GetNoiseNoiseVarianceGaussianStatistics (double TotalNoiseSpectralDensity, double DOP_Noise)
	Returns noise-noise beating variance given by JLT05_24.
double	GetIntegralForNoiseNoiseVarianceGaussianStatistics (void)
double	GetSignalNoiseVarianceForUnpolarizedNoiseGaussianStatistics (double Time, double TotalNoiseSpectralDensity)
double	GetSignalNoiseVarianceForPolarizedSignalGaussianStatistics (double Time, double UnitStokesSignal, double UnitStokesNoise, double TotalNoiseSpectralDensity, double DOP_Noise)
double	GetIntegralForSignalNoiseVariance (OptSignal OptSignalA, OptSignal OptSignalB, double TimeShiftA, double TimeShiftB, double Time)
double	GetEnhancementFactor (double OSA_NoiseBandwidth)
double	GetNormalizedEnhancementFactor (void)
double	GetESNR_Mark_GaussianStatistics (double NoiseSpectralDensity)
double	GetESNR_GaussianStatistics (double NoiseSpectralDensity)
double	GetNormKcoeff1_GaussianStatistics (void)
double	GetNormKcoeff0_GaussianStatistics (void)
double	GetNormNumberNoiseModes_GaussianStatistics (void)
double	GetCurrentExtinctionRatio_GaussianStatistics (void)
double	GetQ_FactorFromESNR_GaussianStatistics (double ESNR)
double	GetQ_FactorFromESNR_GaussianStatistics (double ESNR, double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetQ_FactorGaussianStatisticsWorstPattern (double NoiseSpectralDensity)
double	GetQ_FactorGaussianStatisticsWorstPattern (double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetQ_FactorGaussianStatisticsFirstPattern (double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetQ_FactorGaussianStatisticsFromBER (double NoiseSpectralDensity)
	Added by Jonathan.
double	GetQ_FactorGaussianStatisticsFromBER (double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetBER_GaussianStatisticsFromDecisionThreshold (double DecisionCurrent)
double	GetBER_GaussianStatistics (void)
double	MinimizeSqQ_FactorVersusBER (double Q_FactorTmp)
double	brentHu (double ax, double bx, double cx, double(f)(double), double tol, double xmin)
double	testsq (double ax)
double	GetMeanASE_ASE (double NoiseSpectralDensity)
double	GetMeanASE_ASE (double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetStdDevASE_ASE (double NoiseSpectralDensity)
double	GetStdDevASE_ASE (double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetStdDevSignal_ASE_BitSlot (int BitSlot, double NoiseSpectralDensity)
double	GetStdDevSignal_ASE_BitSlot (int BitSlot, double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetStdDevSignal_ASE_TimeIndex (int TargetIndexTime2, double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetStdDevWorstBit1_GaussianStatistics (double NoiseSpectralDensity)
double	GetStdDevWorstBit1_GaussianStatistics (double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetStdDevWorstBit0_GaussianStatistics (double NoiseSpectralDensity)
double	GetStdDevWorstBit0_GaussianStatistics (double NoiseSpectralDensityX, double NoiseSpectralDensityY)
double	GetMinCurrentBit1 (void)
double	GetMaxCurrentBit0 (void)
double	GetMinCurrentBit1 (int *BitSlotMinCurrentBit1)
double	GetMaxCurrentBit0 (int *BitSlotMaxCurrentBit0)
double	GetCurrentFirstBit1 (int *BitSlotCurrentFirstBit1)
double	GetCurrentFirstBit0 (int *BitSlotCurrentFirstBit0)
double	GetCurrentBitFromRecoveredSignal (int BitSlotCurrentBit)
double	GetCurrentBit (int BitSlotCurrentBit)
double	GetMeanCurrentIsolatedBit1 (void)
double	GetMeanCurrentIsolatedBit0 (void)
int	GetQtPoints (void)
double	GetDeltaTime (void)
int	GetBit (int BitSlot)
double	GetBitLength (void)
int	GetStringLength (void)
void	InitPatternStats (void)
	Initializes parameters and memory if user is computing pattern stats.
void	AllocateMemoryForPatternStats (void)
	Called by ElecSignalStat::InitPatternStats.
void	ReleaseMemoryForPatternStats (void)
	Called by ElecSignalStat::~ElecSignalStat().
void	ClearPatternStats (void)
	Sets all pattern stat variables to zero.
void	EnumeratePatterns (ofstream *OutFile)
bool	GetPattern (int PatternIndex, int BitIndex)
bool	GetCenterBitPattern (int PatternIndex)
	Returns the center bit of the pattern with index PaternIndex.
int	GetPatternIndex (bool *LocalPatternArray, int LengthOfPattern)
void	UpdatePatternStats (int BitIndex, double PowerElecSignal)
	Call this function once per Monte Carlo run for each bit.
bool	PatternEquality (bool PatternArray1, bool PatternArray2, int LengthOfPattern)
	Tests for equality of two bit patterns.
void	PreparePatternStatsForOutput (void)
void	WriteFilePatternStats (string OutFileName)
	Writes the pattern stats to a file.
Public Attributes
OptSignal *	oOptSignal
Photodetector *	oPhotodetector
double *	BitIntensity
Private Member Functions
void	InitElecSignalStat (OptSignal oOptSignal2, Photodetector oPhotodetector2)
	This function is called by both constructors.
void	ComputePerformanceStatisticsNoTimeShift (void)
void	UpdateMoments (int BitIndex, double PowerElecSignal)
	Internal function called by UpdatePerformanceStatistics.
void	ComputeTargetFreqIndex (void)
	Sets the target frequency for the clock recovery.
int	GetTargetIndexTime (void)
	Internal function that returns integer index of the clock recovery time.
double	GetTargetTime (void)
	Gets the double-precision target time associated with the clock recovery.
double	ComputePhaseTargetFreq (void)
	Returns the phase that will be used to compute the clock recovery time.
int	GetTargetIndexTimeBestQ_Factor (void)
int	GetTargetIndexTimeBestMinEyeOpening (void)
void	UpdateClock (void)
	Internal Function.
Private Attributes
int	ObjectInitialized
bool	UseAbsCurrentFlag
cfftw *	fft
fftPowerMatrices	sfftPM
typePulse	TypePulse
int	qtPoints
int	qtPointsLast
double	DeltaTime
double	TimeWindow
double	DeltaFreq
int	StringLength
double	BitLength
double	BitRateChann
typeClockRecovery	TypeClockRecovery
int	UseSmoothingToRecoverClockFlag
double	GaussianSmoothingFWHM
int	BitStringShift
double	InputClockRecoveryTime
double	ClockRecoveryTime
double	ClockRecoveryTimeBeforeTimeShift
int	TargetFreqIndex
int	FirstTargetIndexTime
int	SumRelTargetIndexTime
int	NumCallsToUpdateClock
double	SumTargetIndexTimesForUpdateClock
int	qtRunsEyeDiagram
int	qtRunsEyeDiagramFixedCLK
double	Q_Factor
double	BitErrorRate
double	AmplitudeMargin
double	MeanPower
int	qtBit0
int	qtBit1
double	Bit0_PowerSum
double	Bit1_PowerSum
double	Bit0_PowerSquareSum
double	Bit1_PowerSquareSum
double	Bit0_PowerMax
double	Bit1_PowerMin
int	qtIsolatedBit0
int	qtIsolatedBit1
double	IsolatedBit0_PowerSum
double	IsolatedBit1_PowerSum
double	IsolatedBit0_PowerSquareSum
double	IsolatedBit1_PowerSquareSum
double	IsolatedBit0_PowerMax
double	IsolatedBit1_PowerMin
bool	InitializedGaussianStatisticsFlag
double *	VariancesCurrentSignalNoiseBeating
OptSignal *	oOptSignal1
OptSignal *	oOptSignal2
OptSignal *	oOptSignal3
OptSignal *	oOptSignalX
OptFilter *	oOrigOptFilter
OptFilter *	oOptFilter2
Photodetector *	oPhotodetector2
ElecFilter *	oElecFilter2
ElecSignalStat *	oElecSignalStat2
OptSignal *	oOptSignal4
OptFilter *	oOptFilter4
Photodetector *	oPhotodetector4
ElecFilter *	oElecFilter4
ElecSignalStat *	oElecSignalStat4
double	BER_GaussianStatistics
double	Q_FactorPre
double	NoiseSpectralDensityX_PD
double	NoiseSpectralDensityY_PD
bool	DoGaussianPDFsMonteCarloFlag
int	NumTimeSlices
double *	TimeSlices
int *	TimeSliceIndices
int *	BitString
double *	StdDevCurrentMonteCarlo
double *	MeanCurrentMonteCarlo
double *	PowerSumBit
double *	PowerSquareSumBit
int *	qtBit
double	MinCurrent
double	MaxCurrent
double	DeltaCurrent
int	NumPointsCurrent
double *	CurrentVector
double *	BERGaussianPDFs
double *	AverageGaussianPDFZeros
double *	AverageGaussianPDFOnes
double **	GaussianPDFTimeSlices
double *	GaussianPDFTimeSlicesStorageVec
bool	ComputePatternStatsFlag
int	PatternLength
int	NumPatterns
	The number of patterns which is pow(2,PatternLength).
bool *	PatternArray
	A bool array to store a pattern.
double *	MeanPattern
double *	StdDevPattern
int *	NumOccurencesPattern
	Stores the total number of occurneces of each pattern.
double *	VoltageSumPattern
	Array to store the sums of the voltages for each pattern.
double *	VoltageSumSquaresPattern
	Array to store the sum of the squares of the voltages for each pattern.
double *	MaximumVoltagePattern
	Array to store the maximum voltage for each pattern.
double *	MinimumVoltagePattern
	Array to store the minimum voltage for each pattern.

Detailed Description

The ElecSignalStat class recovers the clock and computes the mean and standard deviation of the received electrically filtered current in each bit at the clock recovery time.

The class can be used in several different modes: For noise-free simulations, with noise in conjunction with Monte Carlo simulations, or with noise using the Gaussian statistics method for computing the first two moments in each bit given by the method of Winzer/Lima. Rather than using this class directly it is better to use one of the receiver classes: GaussianReceiver, ChiSquareReceiver, or ReceiverSemianalytical

The class was primarily written by Ivan Lima with additional code by Aurenice Lima, Brian Marks and John Zweck. The class was substantially edited and reorganized by John Zweck in Jan 2006.

The GaussianStatistics methods implement the equations in the paper

"A Receiver Model for Optical Fiber Communication Systems With Arbitrarily Polarized Noise," by

I. T. Lima, Jr., A. O. Lima, Y. Sun, H. Jiao, J. Zweck, C. R. Menyuk, and G. M. Carter, in

J. Lightwave Technol. 23 (3), pp. 1478--1490, 2005.

Equation numbers given in documentation refer to equation numbers in that paper, eg JLT05_22

Constructor & Destructor Documentation

ElecSignalStat::ElecSignalStat	(	OptSignal *	oOptSignal2,
		Photodetector *	oPhotodetector2
	)

Constructor without input file.

References InitElecSignalStat().

Referenced by SetOptElecFiltersForGaussianStatistics().

ElecSignalStat::ElecSignalStat	(	string	InFileName,
		OptSignal *	oOptSignal2,
		Photodetector *	oPhotodetector2
	)

Constructor that reads parameters from an input file.

Input parameters are

SetTypeClockRecoveryFlag -- TypeClockRecovery (values 0 to 8)
ComputePatternStatsFlag -- PatternLength
UseSmoothingToRecoverClockFlag (Out of date)
GaussianSmoothingFWHM (Out of date)

References AverageGaussianPDFOnes, AverageGaussianPDFZeros, BERGaussianPDFs, ClearElecSignalStat(), ComputePatternStatsFlag, ComputeTargetFreqIndex(), CurrentVector, DeltaCurrent, DoGaussianPDFsMonteCarloFlag, GaussianPDFTimeSlices, GaussianPDFTimeSlicesStorageVec, GaussianSmoothingFWHM, OptSignal::GetBitLength(), InitElecSignalStat(), InitPatternStats(), InputClockRecoveryTime, LogFile, LogFileSeparator(), LOWER_AND_UPPER, LOWER_ONLY, MANDATORY, MaxCurrent, MeanCurrentMonteCarlo, MinCurrent, NewDouble(), NewInt(), NO_BOUNDS, NumPointsCurrent, NumTimeSlices, oOptSignal, OPTIONAL_NO_WARNING, PatternLength, PowerSquareSumBit, PowerSumBit, qtBit, ReadDouble(), ReadInt(), StdDevCurrentMonteCarlo, StringLength, TimeSliceIndices, TimeSlices, TypeClockRecovery, USER_SET, UseSmoothingToRecoverClockFlag, and WriteTypeClockRecovery().

ElecSignalStat::~ElecSignalStat ( void )

Member Function Documentation

void ElecSignalStat::AllocateMemoryForPatternStats ( void )

Called by ElecSignalStat::InitPatternStats.

References MaximumVoltagePattern, MeanPattern, MinimumVoltagePattern, NumOccurencesPattern, NumPatterns, PatternArray, PatternLength, StdDevPattern, VoltageSumPattern, and VoltageSumSquaresPattern.

Referenced by InitPatternStats().

double ElecSignalStat::brentHu	(	double	ax,
		double	bx,
		double	cx,
		double(*)(double)	f,
		double	tol,
		double *	xmin
	)

References CGOLD, nrerror(), SHFT, and SIGN.

void ElecSignalStat::CheckGaussianStatisticsInitialization ( string CallingMethod )

References InitializedGaussianStatisticsFlag, LogFile, and LogFileSeparator().

void ElecSignalStat::ClearElecSignalStat ( void )

Resets variables to correctly calculate statistics Use when doing parameter studies before change parameters

References Bit0_PowerMax, Bit0_PowerSquareSum, Bit0_PowerSum, Bit1_PowerMin, Bit1_PowerSquareSum, Bit1_PowerSum, ClearGaussianPDFsMonteCarlo(), ClearPatternStats(), ClockRecoveryTime, ComputePatternStatsFlag, DoGaussianPDFsMonteCarloFlag, IsolatedBit0_PowerMax, IsolatedBit0_PowerSquareSum, IsolatedBit0_PowerSum, IsolatedBit1_PowerMin, IsolatedBit1_PowerSquareSum, IsolatedBit1_PowerSum, NumCallsToUpdateClock, qtBit0, qtBit1, qtIsolatedBit0, qtIsolatedBit1, qtRunsEyeDiagram, and qtRunsEyeDiagramFixedCLK.

Referenced by ComputeEqualizedPerformanceStatistics(), ComputePerformanceStatistics(), ComputePerformanceStatisticsNoTimeShift(), ElecSignalStat(), InitElecSignalStat(), ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSubsystem::ReceiveSignalBackToBackCenterFreq(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), and ReceiverSubsystem::ReceiveSignalCenterFreq().

void ElecSignalStat::ClearGaussianPDFsMonteCarlo ( void )

References PowerSquareSumBit, PowerSumBit, qtBit, and StringLength.

Referenced by ClearElecSignalStat().

void ElecSignalStat::ClearPatternStats ( void )

Sets all pattern stat variables to zero.

Called by ElecSignalStat::ClearElecSignalStat(void) and ElecSignalStat::InitPatternStats(void)

References MaximumVoltagePattern, MeanPattern, MinimumVoltagePattern, NumOccurencesPattern, NumPatterns, PatternArray, StdDevPattern, VoltageSumPattern, and VoltageSumSquaresPattern.

Referenced by ClearElecSignalStat(), and InitPatternStats().

void ElecSignalStat::ComputeAndOutputMomentsFromMonteCarlo ( string FileID )

References GetClockRecoveryTime(), GetPowerMeanBit(), GetPowerStdDevBit(), MeanCurrentMonteCarlo, NumTimeSlices, StdDevCurrentMonteCarlo, and TimeSlices.

Referenced by OutputGaussianStatisticsFromMonteCarlo().

void ElecSignalStat::ComputeAveragePDFs ( void )

References AverageGaussianPDFOnes, AverageGaussianPDFZeros, CurrentVector, GaussianPDFTimeSlices, BitString::GetBit(), MeanCurrentMonteCarlo, NumPointsCurrent, NumTimeSlices, OptSignal::oBitString, oOptSignal, pi, Quadrature(), sq(), sqrt(), and StdDevCurrentMonteCarlo.

Referenced by OutputGaussianStatisticsFromMonteCarlo().

void ElecSignalStat::ComputeEqualizedPerformanceStatistics ( void )

A version of ComputePerformanceStatistics() used in conjunction with an ElecEqualizer object. The BitIntensity array must have been previously set by the ElecEqualizer object.

References ClearElecSignalStat(), and UpdateEqualizedPerformanceStatistics().

Referenced by ElecEqualizer::EqualizeBitIntensityWienerCplx(), and ElecEqualizer::EqualizeBitIntensityWienerReal().

void ElecSignalStat::ComputeMinimumBERAndDecisionThreshold ( string FileID )

References AverageGaussianPDFOnes, AverageGaussianPDFZeros, BERGaussianPDFs, CurrentVector, max(), NumPointsCurrent, Quadrature(), and WriteFilePairVectors().

Referenced by OutputGaussianStatisticsFromMonteCarlo().

void ElecSignalStat::ComputePerformanceStatistics ( void )

Computes the intensity of received current in each bit and the mean and standard deviation of the received current in each bit at clock recovery time. Used in either noise-free simulations or with noise in Monte Carlo simulations.

References ClearElecSignalStat(), ClockRecoveryTime, ClockRecoveryTimeBeforeTimeShift, GetTargetTime(), oPhotodetector, Photodetector::TimeShiftSignal(), and UpdatePerformanceStatistics().

void ElecSignalStat::ComputePerformanceStatisticsNoTimeShift ( void ) [private]

A version of ElecSignalStat::ComputePerformanceStatistics that does not involve time-shifting the signal. A private function that should ONLY be used by semianalytical methods

References ClearElecSignalStat(), and UpdatePerformanceStatistics().

Referenced by GetStdDevSignal_ASE_BitSlot().

double ElecSignalStat::ComputePhaseTargetFreq ( void ) [private]

Returns the phase that will be used to compute the clock recovery time.

References BEST_MIN_EYE_OPENING, BEST_Q_FACTOR, BINARY_EXOR, Photodetector::ComputeWorkBinaryEXORElecSignal(), Photodetector::ComputeWorkContEXORElecSignal(), Photodetector::ComputeWorkDifferentiatedThenSquaredElecSignal(), Photodetector::ComputeWorkSumDelayedHalfBitPeriodThenSquare(), CONTINUOUS_EXOR, DIFFERENTIATE_SIGNAL, fftPowerMatrices::fPowerSignal, FREQ_DOUBLING, GetPhase(), LogFileAbortWithErrorMsg(), NRZ_HALF_SIGNAL_FREQ, oPhotodetector, RZ_SIGNAL_FREQ, sfftPM, TargetFreqIndex, TypeClockRecovery, USER_SET, and Photodetector::WorksfftPM.

Referenced by GetTargetIndexTime(), and GetTargetTime().

void ElecSignalStat::ComputeTargetFreqIndex ( void ) [private]

Sets the target frequency for the clock recovery.

References BitRateChann, CRZ_GAUSS, CRZ_RCOS, CRZ_SIN_MZ, CW, INPUT_SEQUENCE, LogFileAbortWithErrorMsg(), NRZ, NRZ_HALF_SIGNAL_FREQ, RZ_GAUSS, RZ_GAUSS_PATTERN, RZ_SECH, RZ_SIGNAL_FREQ, TargetFreqIndex, TimeWindow, TypeClockRecovery, TypePulse, UMBC_RZ, and USER_SET.

Referenced by ElecSignalStat(), and InitElecSignalStat().

void ElecSignalStat::EnumeratePatterns ( ofstream * OutFile )

Writes all bit patterns of length PatternLength to a file together with their PatternIndicies which are the decimal integers corresponding to each of the bit patterns

References GetPattern(), GetPatternIndex(), NumPatterns, PatternArray, and PatternLength.

Referenced by InitPatternStats().

double ElecSignalStat::GetAmplitudeMargin ( void ) [inline]

References AmplitudeMargin.

Referenced by ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), ReceiverSubsystem::WriteStats(), and ReceiverSemiAnalytical::WriteStats().

double ElecSignalStat::GetBER_GaussianStatistics ( void )

References CGOLD, GetBER_GaussianStatisticsFromDecisionThreshold(), GetMaxCurrentBit0(), GetMinCurrentBit1(), ITMAX, nrerror(), oElecSignalStat4, SHFT, and SIGN.

Referenced by GetQ_FactorGaussianStatisticsFromBER().

double ElecSignalStat::GetBER_GaussianStatisticsFromDecisionThreshold ( double DecisionCurrent )

References erfccExtendedRange(), GetBit(), GetCurrentBit(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), OptSignal::GetStringLength(), NoiseSpectralDensityX_PD, NoiseSpectralDensityY_PD, oElecSignalStat4, oOptSignal, qtBit0, qtBit1, sq(), sqrt(), and StringLength.

Referenced by GetBER_GaussianStatistics().

int ElecSignalStat::GetBit ( int BitSlot ) [inline]

References BitString::GetBit(), OptSignal::oBitString, and oOptSignal.

Referenced by GetBER_GaussianStatisticsFromDecisionThreshold(), GetCurrentFirstBit0(), GetCurrentFirstBit1(), GetMaxCurrentBit0(), and GetMinCurrentBit1().

double ElecSignalStat::GetBit0_PowerMax ( void ) [inline]

Maximum current in zeros. First call ComputePerformanceStatistics() or UpdatePerformanceStatistics()

References Bit0_PowerMax.

Referenced by ReceiverSubsystem::WriteStatsCenterFreq().

double ElecSignalStat::GetBit0_PowerMean ( void ) [inline]

Mean of current in zeros at clock recovery time Must first call ComputePerformanceStatistics() or UpdatePerformanceStatistics()

References Bit0_PowerSum, and qtBit0.

Referenced by GetBit0_PowerStdDev(), GetClockCurrent(), GetElecTimeDomainSNR(), GetQ_Factor(), ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), WriteFileEyeDiagram(), WriteFileEyeDiagramFixedCLK(), ReceiverSubsystem::WriteStats(), ReceiverSemiAnalytical::WriteStats(), and ReceiverSubsystem::WriteStatsCenterFreq().

double ElecSignalStat::GetBit0_PowerStdDev ( void ) [inline]

Standard deviation of current in zeros at clock recovery time Must first call ComputePerformanceStatistics() or UpdatePerformanceStatistics()

References Bit0_PowerSquareSum, GetBit0_PowerMean(), qtBit0, sq(), and sqrt().

Referenced by GetQ_Factor(), ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), ReceiverSubsystem::WriteStats(), ReceiverSemiAnalytical::WriteStats(), and ReceiverSubsystem::WriteStatsCenterFreq().

double ElecSignalStat::GetBit1_PowerMean ( void ) [inline]

Mean of current in ones at clock recovery time Must first call ComputePerformanceStatistics() or UpdatePerformanceStatistics()

References Bit1_PowerSum, and qtBit1.

Referenced by GetBit1_PowerStdDev(), GetClockCurrent(), GetElecTimeDomainSNR(), GetQ_Factor(), ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), WriteFileEyeDiagram(), WriteFileEyeDiagramFixedCLK(), ReceiverSubsystem::WriteStats(), ReceiverSemiAnalytical::WriteStats(), and ReceiverSubsystem::WriteStatsCenterFreq().

double ElecSignalStat::GetBit1_PowerMin ( void ) [inline]

Minimum current in zeros. First call ComputePerformanceStatistics() or UpdatePerformanceStatistics()

References Bit1_PowerMin.

Referenced by ReceiverSubsystem::WriteStatsCenterFreq().

double ElecSignalStat::GetBit1_PowerStdDev ( void ) [inline]

Standard deviation of current in ones at clock recovery time Must first call ComputePerformanceStatistics() or UpdatePerformanceStatistics()

References Bit1_PowerSquareSum, GetBit1_PowerMean(), qtBit1, sq(), and sqrt().

Referenced by GetQ_Factor(), ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), ReceiverSubsystem::WriteStats(), ReceiverSemiAnalytical::WriteStats(), and ReceiverSubsystem::WriteStatsCenterFreq().

double ElecSignalStat::GetBitErrorRate ( void ) [inline]

Returns the bit error rate computed from the mean and the standard deviation of the marks and spaces By Ivan Lima

References GetQ_Factor(), pi, sq(), and sqrt().

Referenced by ReceiverSubsystem::WriteStats(), and ReceiverSemiAnalytical::WriteStats().

double ElecSignalStat::GetBitErrorRate ( double Q_Factor ) [inline]

Returns the bit error rate computed from an input Q-factor By Ivan Lima

References pi, sq(), and sqrt().

int ElecSignalStat::GetBitFromString ( int ii ) [inline]

References BitString::GetBit(), OptSignal::oBitString, and oOptSignal.

Referenced by ElecEqualizer::EqualizeBitIntensityWienerReal().

double ElecSignalStat::GetBitLength ( void ) [inline]

References BitLength.

int ElecSignalStat::GetBitStringShift ( void ) [inline]

References BitStringShift.

Referenced by GetStdDevSignal_ASE_BitSlot().

bool ElecSignalStat::GetCenterBitPattern ( int PatternIndex )

Returns the center bit of the pattern with index PaternIndex.

References GetPattern(), and PatternLength.

double ElecSignalStat::GetClockCurrent ( void )

References GetBit0_PowerMean(), and GetBit1_PowerMean().

Referenced by ChiSquareReceiver::ReceiveNoiseFreeSignalAndRecoverClock(), ReceiverSemiAnalytical::ReceiveSignalSemiAnalytical(), ReceiverSubsystem::WriteStats(), and ReceiverSemiAnalytical::WriteStats().

double ElecSignalStat::GetClockRecoveryTime ( void ) [inline]

Sets and returns ClockRecoveryTime Call after ComputePerformanceStatistics()

References ClockRecoveryTime, and GetTargetTime().

Referenced by ComputeAndOutputMomentsFromMonteCarlo(), ReceiverSubsystem::ReceiveSignal(), ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalSemiAnalytical(), SetTimeSlices(), and ReceiverSubsystem::WriteStats().

double ElecSignalStat::GetClockRecoveryTimeBeforeTimeShift ( void ) [inline]

See ElecSignalStat::ComputePerformanceStatistics().

References ClockRecoveryTimeBeforeTimeShift.

Referenced by ChiSquareReceiver::ReceiveNoiseFreeSignalAndRecoverClock(), and GaussianReceiver::RecoverClockAndSetTimeSlices().

double ElecSignalStat::GetClockTimeForMonteCarloEye ( void )

Use in conjunction with WriteFileEyeDiagram() to generate eye diagram that can plot in Matlab

References DeltaTime, NumCallsToUpdateClock, Periodicity(), qtPoints, StringLength, and SumTargetIndexTimesForUpdateClock.

Referenced by ReceiverSemiAnalytical::WriteStats().

double ElecSignalStat::GetCurrentBit ( int BitSlotCurrentBit )

References BitIntensity, and ComputePerformanceStatistics().

Referenced by GetBER_GaussianStatisticsFromDecisionThreshold().

double ElecSignalStat::GetCurrentBitFromRecoveredSignal ( int BitSlotCurrentBit )

References BitIntensity.

double ElecSignalStat::GetCurrentExtinctionRatio_GaussianStatistics ( void )

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMaxCurrentBit0(), GetMinCurrentBit1(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, and oPhotodetector2.

double ElecSignalStat::GetCurrentFirstBit0 ( int * BitSlotCurrentFirstBit0 )

References BitIntensity, ComputePerformanceStatistics(), GetBit(), and StringLength.

Referenced by GetQ_FactorGaussianStatisticsFirstPattern().

double ElecSignalStat::GetCurrentFirstBit1 ( int * BitSlotCurrentFirstBit1 )

References BitIntensity, ComputePerformanceStatistics(), GetBit(), and StringLength.

Referenced by GetQ_FactorGaussianStatisticsFirstPattern().

double ElecSignalStat::GetDeltaTime ( void ) [inline]

References DeltaTime.

Referenced by ElecEqualizer::WriteFileEyeDiagram().

double ElecSignalStat::GetElecTimeDomainSNR ( void ) [inline]

References GetBit0_PowerMean(), and GetBit1_PowerMean().

double ElecSignalStat::GetElecTimeDomainSNR_IsolatedBits ( void ) [inline]

References GetIsolatedBit0_PowerMean(), and GetIsolatedBit1_PowerMean().

double ElecSignalStat::GetEnhancementFactor ( double OSA_NoiseBandwidth )

$$$$$$$$ This is a test where the effective noise bandwidth is $$ considered. I should comment it afterwards. $$ But do not delete these comments, please. $$ Definitively, this should not be here (IL 5/14/02) double RatioEffectiveNoiseBandwidth_BandwidthOptFilter = GetMeanASE_ASE(1.,oOptFilter,oElecFilter) /oOptFilter->GetFreqFWHM_OptFilter(); cout << "RatioEffectiveNoiseBandwidth_BandwidthOptFilter = " << RatioEffectiveNoiseBandwidth_BandwidthOptFilter << endl; EnhancementFactor /= RatioEffectiveNoiseBandwidth_BandwidthOptFilter; $$ End of test

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), OptSignal::GetAveragePower(), Photodetector::GetConvFactOptElecPhotod(), GetMeanASE_ASE(), GetMinCurrentBit1(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, and oPhotodetector2.

Referenced by ReceiverSemiAnalytical::GetLimaParameters().

double ElecSignalStat::GetESNR_GaussianStatistics ( double NoiseSpectralDensity )

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMaxCurrentBit0(), GetMeanASE_ASE(), GetMinCurrentBit1(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, and oPhotodetector2.

double ElecSignalStat::GetESNR_Mark_GaussianStatistics ( double NoiseSpectralDensity )

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMeanASE_ASE(), GetMinCurrentBit1(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, and oPhotodetector2.

double ElecSignalStat::GetIntegralForNoiseNoiseVarianceGaussianStatistics ( void )

Returns I_{ASE-ASE} given by JLT05_26 using formula in JLT05_53 This integral represents the factor in the noise-noise beating variance that is independent of the noise statistics, and only depends on the optical and electrical filters.

References CheckGaussianStatisticsInitialization(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), fftMatrices::fOptSignalX, fftPowerMatrices::fPowerSignal, Photodetector::Freq2Time(), OptSignal::Freq2Time(), OptSignal::GenerateImpulseSignal(), Photodetector::GetDeltaFreq(), oElecFilter2, oOptFilter2, oOptSignal2, oOptSignal3, oPhotodetector2, qtPoints, OptSignal::sfftM, Photodetector::sfftPM, sq(), Photodetector::Time2Freq(), fftMatrices::tOptSignalX, and fftPowerMatrices::tPowerSignal.

Referenced by GetNoiseNoiseVarianceGaussianStatistics().

double ElecSignalStat::GetIntegralForSignalNoiseVariance	(	OptSignal *	OptSignalA,
		OptSignal *	OptSignalB,
		double	TimeShiftA,
		double	TimeShiftB,
		double	Time
	)

Returns I_{S-ASE}(t) given by JLT05_29 using formula in JLT05_54 where e_() is replaced by OptSignalA shifted right by TimeShiftA and e_(') replaced by OptSignalB shifted right by TimeShiftB and Time is the time t.

Returns I_{S-ASE}(t) given by JLT05_29 using formula in JLT05_54 where e_() is replaced by OptSignalA and e_(') by OptSignalB and Time is the time t.

Integrals of this sort represent terms in the formula for the signal-noise beating variance that are independent of the noise statistics, and only depend on the optical and electrical filters, and the noise-free signal. This function is called by the various versions of GetSignalNoiseVariance with appropriate choices of OptSignalA, OptSignalB, and Time.

It is assumed that OptSignalA and OptSignalB are X-polarized!

The integral is

I(t) = 2 conj(SigA(w))SigB(z)r_0(z-w)h_e(t-w)h_e(t-z) dw dz

which we compute using the formula

I(t) = 2 invFT[ H_e FT[SigB invFT( FT(G_s) | H_0|^2) ]](t)

evaluated at s=t, where G_s(w) = conj(SigA(w))h_e(s-w).

References CheckGaussianStatisticsInitialization(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), fftMatrices::fOptSignalX, fftPowerMatrices::fPowerSignal, OptSignal::Freq2Time(), OptSignal::GenerateImpulseSignal(), Photodetector::GetDeltaFreq(), OptSignal::GetDeltaTime(), OptSignal::GetTimeWindow(), oElecFilter2, oOptFilter2, oOptSignal, oOptSignal1, oOptSignal2, oOptSignal3, oOptSignal4, oPhotodetector2, Periodicity(), qtPoints, OptSignal::sfftM, Photodetector::sfftPM, sq(), OptSignal::Time2Freq(), Photodetector::Time2Freq(), OptSignal::TimeShiftSignal(), fftMatrices::tOptSignalX, fftMatrices::tOptSignalY, and fftPowerMatrices::tPowerSignal.

Referenced by GaussianReceiver::ReceiveSignalDGD_NoisePartiallyPolarized().

double ElecSignalStat::GetIsolatedBit0_PowerMax ( void ) [inline]

References IsolatedBit0_PowerMax.

double ElecSignalStat::GetIsolatedBit0_PowerMean ( void ) [inline]

References IsolatedBit0_PowerSum, and qtIsolatedBit0.

Referenced by GetElecTimeDomainSNR_IsolatedBits(), GetIsolatedBit0_PowerStdDev(), and GetQ_FactorFromIsolatedBits().

double ElecSignalStat::GetIsolatedBit0_PowerStdDev ( void ) [inline]

References GetIsolatedBit0_PowerMean(), IsolatedBit0_PowerSquareSum, qtIsolatedBit0, sq(), and sqrt().

Referenced by GetQ_FactorFromIsolatedBits().

double ElecSignalStat::GetIsolatedBit1_PowerMean ( void ) [inline]

References IsolatedBit1_PowerSum, and qtIsolatedBit1.

Referenced by GetElecTimeDomainSNR_IsolatedBits(), GetIsolatedBit1_PowerStdDev(), and GetQ_FactorFromIsolatedBits().

double ElecSignalStat::GetIsolatedBit1_PowerMin ( void ) [inline]

References IsolatedBit1_PowerMin.

double ElecSignalStat::GetIsolatedBit1_PowerStdDev ( void ) [inline]

References GetIsolatedBit1_PowerMean(), IsolatedBit1_PowerSquareSum, qtIsolatedBit1, sq(), and sqrt().

Referenced by GetQ_FactorFromIsolatedBits().

double ElecSignalStat::GetMaxCurrentBit0 ( int * BitSlotMaxCurrentBit0 )

References BitIntensity, ComputePerformanceStatistics(), GetBit(), and StringLength.

double ElecSignalStat::GetMaxCurrentBit0 ( void )

Referenced by GetBER_GaussianStatistics(), GetCurrentExtinctionRatio_GaussianStatistics(), GetESNR_GaussianStatistics(), GetNormKcoeff0_GaussianStatistics(), GetQ_FactorFromESNR_GaussianStatistics(), GetQ_FactorGaussianStatisticsWorstPattern(), and GetStdDevWorstBit0_GaussianStatistics().

double ElecSignalStat::GetMeanASE_ASE ( double NoiseSpectralDensity )

Referenced by GetEnhancementFactor(), GetESNR_GaussianStatistics(), GetESNR_Mark_GaussianStatistics(), GetNormKcoeff0_GaussianStatistics(), GetNormKcoeff1_GaussianStatistics(), GetNormNumberNoiseModes_GaussianStatistics(), GetQ_FactorFromESNR_GaussianStatistics(), and ReceiverSemiAnalytical::ReceiveSignalSemiAnalytical().

double ElecSignalStat::GetMeanASE_ASE	(	double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

double ElecSignalStat::GetMeanCurrentIsolatedBit0 ( void )

References BitIntensity, ComputePerformanceStatistics(), BitString::GetBit(), OptSignal::oBitString, oOptSignal, Periodicity(), qtIsolatedBit0, and StringLength.

double ElecSignalStat::GetMeanCurrentIsolatedBit1 ( void )

References BitIntensity, ComputePerformanceStatistics(), BitString::GetBit(), OptSignal::oBitString, oOptSignal, Periodicity(), qtIsolatedBit1, and StringLength.

double ElecSignalStat::GetMeanNoiseGaussianStatistics ( double TotalNoiseSpectralDensity )

Returns mean of noise <i_n> given by JLT05_22.

The only difference is that we also multiply by real(H_e(0)) which was assumed to be 1 in the paper.

References CheckGaussianStatisticsInitialization(), DeltaFreq, ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), fftPowerMatrices::fPowerSignal, OptSignal::GenerateImpulseSignal(), Photodetector::GetConvFactOptElecPhotod(), Photodetector::GetDeltaFreq(), OptSignal::GetDeltaFreq(), OptSignal::GetQtPoints(), oElecFilter2, oOptFilter2, oOptSignal2, oOptSignal3, oPhotodetector2, qtPoints, OptSignal::sfftM, Photodetector::sfftPM, sq(), Photodetector::Time2Freq(), fftMatrices::tOptSignalX, and fftPowerMatrices::tPowerSignal.

Referenced by GaussianReceiver::ReceiveSignalDGD_NoisePartiallyPolarized(), and GaussianReceiver::ReceiveSignalUnpolarizedNoise().

double ElecSignalStat::GetMeanPower ( void ) [inline]

References MeanPower.

Referenced by ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), ReceiverSubsystem::WriteStats(), and ReceiverSemiAnalytical::WriteStats().

double ElecSignalStat::GetMinAmplitudeMargin ( )

Returns power difference between smallest one and largest zero. Useful when studying PMD. Only to be used in noise-free simulations!

References Bit0_PowerMax, and Bit1_PowerMin.

Referenced by ReceiverSubsystem::WriteStatsCenterFreq().

double ElecSignalStat::GetMinCurrentBit1 ( void )

Referenced by GetBER_GaussianStatistics(), GetCurrentExtinctionRatio_GaussianStatistics(), GetEnhancementFactor(), GetESNR_GaussianStatistics(), GetESNR_Mark_GaussianStatistics(), GetNormalizedEnhancementFactor(), GetNormKcoeff1_GaussianStatistics(), GetQ_FactorFromESNR_GaussianStatistics(), GetQ_FactorGaussianStatisticsWorstPattern(), and GetStdDevWorstBit1_GaussianStatistics().

double ElecSignalStat::GetMinCurrentBit1 ( int * BitSlotMinCurrentBit1 )

References BitIntensity, ComputePerformanceStatistics(), GetBit(), and StringLength.

double ElecSignalStat::GetNoiseNoiseVarianceGaussianStatistics	(	double	TotalNoiseSpectralDensity,
		double	DOP_Noise
	)

Returns noise-noise beating variance given by JLT05_24.

References Photodetector::GetConvFactOptElecPhotod(), GetIntegralForNoiseNoiseVarianceGaussianStatistics(), OptSignal::GetTypeSimulation(), oOptSignal, oPhotodetector2, and sq().

Referenced by GaussianReceiver::ReceiveSignalDGD_NoisePartiallyPolarized(), and GaussianReceiver::ReceiveSignalUnpolarizedNoise().

double ElecSignalStat::GetNormalizedEnhancementFactor ( void )

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), OptSignal::GetAveragePower(), Photodetector::GetConvFactOptElecPhotod(), GetMinCurrentBit1(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, and oPhotodetector2.

Referenced by ReceiverSemiAnalytical::GetLimaParameters().

double ElecSignalStat::GetNormKcoeff0_GaussianStatistics ( void )

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMaxCurrentBit0(), GetMeanASE_ASE(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, sq(), and sqrt().

Referenced by ReceiverSemiAnalytical::GetLimaParameters().

double ElecSignalStat::GetNormKcoeff1_GaussianStatistics ( void )

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMeanASE_ASE(), GetMinCurrentBit1(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, sq(), and sqrt().

Referenced by ReceiverSemiAnalytical::GetLimaParameters().

double ElecSignalStat::GetNormNumberNoiseModes_GaussianStatistics ( void )

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMeanASE_ASE(), GetStdDevASE_ASE(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, and sq().

Referenced by ReceiverSemiAnalytical::GetLimaParameters().

bool ElecSignalStat::GetPattern	(	int	PatternIndex,
		int	BitIndex
	)

Converts the integer PatternIndex into binary format returning coefficient of pow(2,BitIndex) in this binary expansion

References PatternLength.

Referenced by EnumeratePatterns(), GetCenterBitPattern(), and WriteFilePatternStats().

int ElecSignalStat::GetPatternIndex	(	bool *	LocalPatternArray,
		int	LengthOfPattern
	)

Returns the PatternIndex correpsonding to the bit string given by LocalPatternArray

Referenced by EnumeratePatterns(), and UpdatePatternStats().

double ElecSignalStat::GetPowerMeanBit ( int BitIndex )

Mean of current in bit with index BitIndex at clock recovery time. Must first call UpdatePerformanceStatistics(). For Monte Carlo.

References PowerSumBit, and qtBit.

Referenced by ComputeAndOutputMomentsFromMonteCarlo(), and GetPowerStdDevBit().

double ElecSignalStat::GetPowerStdDevBit ( int BitIndex )

Standard deviation of current in bit with index BitIndex at clock recovery time. Must first call UpdatePerformanceStatistics(). For Monte Carlo.

References GetPowerMeanBit(), PowerSquareSumBit, qtBit, sq(), and sqrt().

Referenced by ComputeAndOutputMomentsFromMonteCarlo().

double ElecSignalStat::GetQ_Factor ( void )

Returns the Q-factor computed from the mean and the standard deviation of the marks and spaces By Ivan Lima

References GetBit0_PowerMean(), GetBit0_PowerStdDev(), GetBit1_PowerMean(), and GetBit1_PowerStdDev().

Referenced by GetBitErrorRate(), ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), ReceiverSubsystem::WriteStats(), ReceiverSemiAnalytical::WriteStats(), and ReceiverSubsystem::WriteStatsCenterFreq().

double ElecSignalStat::GetQ_FactorFromESNR_GaussianStatistics ( double ESNR )

double ElecSignalStat::GetQ_FactorFromESNR_GaussianStatistics	(	double	ESNR,
		double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMaxCurrentBit0(), GetMeanASE_ASE(), GetMinCurrentBit1(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), OptSignal::GetTotalStokesParameters(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, sq(), and sqrt().

double ElecSignalStat::GetQ_FactorFromIsolatedBits ( void )

References GetIsolatedBit0_PowerMean(), GetIsolatedBit0_PowerStdDev(), GetIsolatedBit1_PowerMean(), and GetIsolatedBit1_PowerStdDev().

double ElecSignalStat::GetQ_FactorGaussianStatisticsFirstPattern	(	double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

References AmplitudeMargin, CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetCurrentFirstBit0(), GetCurrentFirstBit1(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, sq(), and sqrt().

double ElecSignalStat::GetQ_FactorGaussianStatisticsFromBER	(	double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

double ElecSignalStat::GetQ_FactorGaussianStatisticsFromBER ( double NoiseSpectralDensity )

Added by Jonathan.

double ElecSignalStat::GetQ_FactorGaussianStatisticsWorstPattern ( double NoiseSpectralDensity )

double ElecSignalStat::GetQ_FactorGaussianStatisticsWorstPattern	(	double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

References AmplitudeMargin, CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMaxCurrentBit0(), GetMinCurrentBit1(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, sq(), and sqrt().

double ElecSignalStat::GetQtBit0 ( void ) [inline]

Number of zeros. First call ComputePerformanceStatistics() or UpdatePerformanceStatistics()

References qtBit0.

Referenced by ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), ReceiverSubsystem::WriteStats(), and ReceiverSemiAnalytical::WriteStats().

double ElecSignalStat::GetQtBit1 ( void ) [inline]

Number of ones. First call ComputePerformanceStatistics() or UpdatePerformanceStatistics()

References qtBit1.

Referenced by ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), ReceiverSubsystem::WriteStats(), and ReceiverSemiAnalytical::WriteStats().

double ElecSignalStat::GetQtIsolatedBit0 ( void ) [inline]

Statistics obtained using isolated zeros and ones.

References qtIsolatedBit0.

double ElecSignalStat::GetQtIsolatedBit1 ( void ) [inline]

References qtIsolatedBit1.

int ElecSignalStat::GetQtPoints ( void ) [inline]

References qtPoints.

Referenced by ElecEqualizer::WriteFileEyeDiagram().

double ElecSignalStat::GetSignalNoiseVarianceForPolarizedSignalGaussianStatistics	(	double	Time,
		double *	UnitStokesSignal,
		double *	UnitStokesNoise,
		double	TotalNoiseSpectralDensity,
		double	DOP_Noise
	)

Returns the signal-noise beating variance at time Time for a polarized VECTOR signal in case of (possibly) partially polarized Gaussian white noise, using JLT05_32.

Returns the signal-noise beating variance at time Time for a polarized VECTOR signal in case of (possibly) partially polarized Gaussian white noise, using JLT05_32. oOptSignal is assumed to be X-polarized!

References sq().

double ElecSignalStat::GetSignalNoiseVarianceForUnpolarizedNoiseGaussianStatistics	(	double	Time,
		double	TotalNoiseSpectralDensity
	)

Returns the signal-noise beating variance in case noise is unpolarized for an arbitrary signal.

Returns the signal-noise beating variance at time Time for an arbitrary signal in case the noise is unpolarized Gaussian white noise, using (a variant of) JLT05_32.

References sq().

cplx* ElecSignalStat::GetSignalTimeDomain ( void ) [inline]

References sfftPM, and fftPowerMatrices::tPowerSignal.

Referenced by ElecEqualizer::WriteFileEyeDiagram().

double ElecSignalStat::GetStdDevASE_ASE	(	double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

double ElecSignalStat::GetStdDevASE_ASE ( double NoiseSpectralDensity )

Referenced by GetBER_GaussianStatisticsFromDecisionThreshold(), GetNormKcoeff0_GaussianStatistics(), GetNormKcoeff1_GaussianStatistics(), GetNormNumberNoiseModes_GaussianStatistics(), GetQ_FactorFromESNR_GaussianStatistics(), GetQ_FactorGaussianStatisticsFirstPattern(), GetQ_FactorGaussianStatisticsWorstPattern(), GetStdDevWorstBit0_GaussianStatistics(), GetStdDevWorstBit1_GaussianStatistics(), and ReceiverSemiAnalytical::ReceiveSignalSemiAnalytical().

double ElecSignalStat::GetStdDevSignal_ASE_BitSlot	(	int	BitSlot,
		double	NoiseSpectralDensity
	)

References CheckGaussianStatisticsInitialization().

Referenced by GetBER_GaussianStatisticsFromDecisionThreshold(), GetNormKcoeff0_GaussianStatistics(), GetNormKcoeff1_GaussianStatistics(), GetQ_FactorFromESNR_GaussianStatistics(), GetQ_FactorGaussianStatisticsFirstPattern(), GetQ_FactorGaussianStatisticsWorstPattern(), GetStdDevWorstBit0_GaussianStatistics(), and GetStdDevWorstBit1_GaussianStatistics().

double ElecSignalStat::GetStdDevSignal_ASE_BitSlot	(	int	BitSlot,
		double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

oElecSignalStat2->ComputePerformanceStatistics();

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatisticsNoTimeShift(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetBitStringShift(), GetStdDevSignal_ASE_TimeIndex(), GetTargetIndexTime(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, Periodicity(), qtPoints, and StringLength.

double ElecSignalStat::GetStdDevSignal_ASE_TimeIndex	(	int	TargetIndexTime2,
		double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

double ElecSignalStat::GetStdDevWorstBit0_GaussianStatistics ( double NoiseSpectralDensity )

double ElecSignalStat::GetStdDevWorstBit0_GaussianStatistics	(	double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMaxCurrentBit0(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, sq(), and sqrt().

double ElecSignalStat::GetStdDevWorstBit1_GaussianStatistics ( double NoiseSpectralDensity )

double ElecSignalStat::GetStdDevWorstBit1_GaussianStatistics	(	double	NoiseSpectralDensityX,
		double	NoiseSpectralDensityY
	)

References CheckGaussianStatisticsInitialization(), ComputePerformanceStatistics(), Photodetector::DetectOptSignal(), ElecFilter::FilterElecSignal(), OptFilter::FilterOptSignal(), GetMinCurrentBit1(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), oElecFilter2, oElecSignalStat2, oOptFilter2, oOptSignal, oOptSignal2, oPhotodetector2, sq(), and sqrt().

int ElecSignalStat::GetStringLength ( void ) [inline]

References StringLength.

Referenced by ElecEqualizer::InitElecEqualizer().

int ElecSignalStat::GetTargetIndexTime ( void ) [private]

Internal function that returns integer index of the clock recovery time.

References BEST_MIN_EYE_OPENING, BEST_Q_FACTOR, BINARY_EXOR, ComputePhaseTargetFreq(), CONTINUOUS_EXOR, DeltaTime, DIFFERENTIATE_SIGNAL, FREQ_DOUBLING, GetTargetIndexTimeBestMinEyeOpening(), GetTargetIndexTimeBestQ_Factor(), InputClockRecoveryTime, LogFileAbortWithErrorMsg(), NRZ_HALF_SIGNAL_FREQ, pi, qtPoints, RZ_SIGNAL_FREQ, StringLength, TypeClockRecovery, and USER_SET.

Referenced by GetStdDevSignal_ASE_BitSlot(), UpdateClock(), UpdatePerformanceStatistics(), WriteFileEyeDiagram(), and WriteFileEyeDiagramFixedCLK().

int ElecSignalStat::GetTargetIndexTimeBestMinEyeOpening ( void ) [private]

References BitString::GetBit(), OptSignal::oBitString, oOptSignal, Periodicity(), qtPoints, sfftPM, sq(), sqrt(), StringLength, fftPowerMatrices::tPowerSignal, and UseAbsCurrentFlag.

Referenced by GetTargetIndexTime(), and GetTargetTime().

int ElecSignalStat::GetTargetIndexTimeBestQ_Factor ( void ) [private]

References BitString::GetBit(), OptSignal::oBitString, oOptSignal, Periodicity(), qtPoints, sfftPM, sq(), sqrt(), StringLength, fftPowerMatrices::tPowerSignal, and UseAbsCurrentFlag.

Referenced by GetTargetIndexTime(), and GetTargetTime().

double ElecSignalStat::GetTargetTime ( void ) [private]

Gets the double-precision target time associated with the clock recovery.

References BEST_MIN_EYE_OPENING, BEST_Q_FACTOR, BINARY_EXOR, BitRateChann, ComputePhaseTargetFreq(), CONTINUOUS_EXOR, DeltaTime, DIFFERENTIATE_SIGNAL, FREQ_DOUBLING, GetTargetIndexTimeBestMinEyeOpening(), GetTargetIndexTimeBestQ_Factor(), InputClockRecoveryTime, LogFileAbortWithErrorMsg(), NRZ_HALF_SIGNAL_FREQ, pi, RZ_SIGNAL_FREQ, TypeClockRecovery, and USER_SET.

Referenced by ComputePerformanceStatistics(), and GetClockRecoveryTime().

void ElecSignalStat::InitElecSignalStat	(	OptSignal *	oOptSignal2,
		Photodetector *	oPhotodetector2
	)			`[private]`

void ElecSignalStat::InitPatternStats ( void )

Initializes parameters and memory if user is computing pattern stats.

Called by the constructor ElecSignalStat(string, OptSignal,Photodetector)

References AllocateMemoryForPatternStats(), ClearPatternStats(), EnumeratePatterns(), LogFile, LogFileSeparator(), NumPatterns, and PatternLength.

Referenced by ElecSignalStat().

double ElecSignalStat::MinimizeSqQ_FactorVersusBER ( double Q_FactorTmp )

References BER_GaussianStatistics, erfccExtendedRange(), and sqrt().

Referenced by GetQ_FactorGaussianStatisticsFromBER().

void ElecSignalStat::OutputGaussianStatisticsFromMonteCarlo ( string FileID )

For use in conjunction with Monte Carlo simulations with noise. Must set DoGaussianPDFsMonteCarloFlag = 1 and other required parameters in ElecSignalStat infile and call constructor: ElecSignalStat::ElecSignalStat(string InFileName,OptSignal *oOptSignal2, Photodetector *oPhotodetector2)

First call UpdatePerformanceStatistics() many times within a loop. Outputs mean and stddev of current in each bit, computes Gaussian approximation to pdf in each bit, computes average pdfs of zeros and ones, based on the individual Gaussian approximations, and finally computes BER from these average pdfs. Outputs all the above statistics to files with prefix FileID. Note FileID should be prefixed by JobDir and JobName.

For use in conjunction with Monte Carlo simulations with noise. Must set DoGaussianPDFsMonteCarloFlag = 1 and other required parameters in ElecSignalStat infile and call constructor: ElecSignalStat::ElecSignalStat(string InFileName,OptSignal *oOptSignal2, Photodetector *oPhotodetector2)

First call UpdatePerformanceStatistics() many times within a loop. Outputs mean and stddev of current in each bit, computes Gaussian approximation to pdf in each bit, computes average pdfs of zeros and ones, based on the individual Gaussian approximations, and finally computes BER from these average pdfs. Outputs all the above statistics to files.

References ComputeAndOutputMomentsFromMonteCarlo(), ComputeAveragePDFs(), ComputeMinimumBERAndDecisionThreshold(), DoGaussianPDFsMonteCarloFlag, SetTimeSlices(), and WriteFilePDFTimeSlicesAndAveragePDFs().

bool ElecSignalStat::PatternEquality	(	bool *	PatternArray1,
		bool *	PatternArray2,
		int	LengthOfPattern
	)

Tests for equality of two bit patterns.

void ElecSignalStat::PreparePatternStatsForOutput ( void )

Computes the means and standard deviations for the center bit in each pattern from the arrays VoltageSumPattern and VoltageSumSquaresPattern

Called by ElecSignalStat::WriteFilePatternStats(string)

References MeanPattern, NumOccurencesPattern, NumPatterns, sq(), sqrt(), StdDevPattern, VoltageSumPattern, and VoltageSumSquaresPattern.

Referenced by WriteFilePatternStats().

void ElecSignalStat::ReleaseMemoryForPatternStats ( void )

Called by ElecSignalStat::~ElecSignalStat().

References MaximumVoltagePattern, MeanPattern, MinimumVoltagePattern, NumOccurencesPattern, PatternArray, StdDevPattern, VoltageSumPattern, and VoltageSumSquaresPattern.

Referenced by ~ElecSignalStat().

void ElecSignalStat::ResetOptElecFilterBandwidthsForGaussianStatistics	(	double	FreqFWHM_OptFilter2,
		double	f3dB_ElecFilter2
	)

To be used in conjunction with ResetOptElecFiltersForGaussianStatistics (JZ, April 2004)

References CheckGaussianStatisticsInitialization(), oElecFilter2, oOptFilter2, ElecFilter::SetFreqFWHM_ElecFilter(), and OptFilter::SetFreqFWHM_OptFilter().

Referenced by ReceiverSemiAnalytical::GetLimaParameters().

void ElecSignalStat::ResetOptElecFiltersForGaussianStatistics ( void )

Use this method if you want to use the same ElecSignalStat object to compute the GaussianStatistics for oOptSignal at different times during your simulation (JZ, April 2003).

Call each time system parameters change

Use this method if you want to use the same ElecSignalStat object to compute the GaussianStatistics for oOptSignal at different times during your simulation (JZ, April 2003)

Call each time system parameters change.

References OptFilter::GetRelativeCenterFreqOptFilter(), oOptFilter2, oOptSignal, oOptSignal1, oOptSignal2, oOptSignal3, oOptSignal4, oOptSignalX, oOrigOptFilter, oPhotodetector2, Photodetector::SetOptSignal(), and OptFilter::SetRelativeCenterFreq().

Referenced by ReceiverSemiAnalytical::GetLimaParameters(), GaussianReceiver::ReceiveSignalDGD_NoisePartiallyPolarized(), ReceiverSemiAnalytical::ReceiveSignalSemiAnalytical(), and GaussianReceiver::ReceiveSignalUnpolarizedNoise().

void ElecSignalStat::SetOptElecFiltersForGaussianStatistics	(	OptFilter *	oOptFilter,
		ElecFilter *	oElecFilter
	)

Constructs auxilliary optical and the electrical filters that will be used to compute the Gaussian statistics.

Constructs auxilliary optical and the electrical filters that will be used to compute the semi-analytical statistics.

The method initializes auxiliary objects that are used throughout the computation. The method should be called prior to the first time in the application code that the semi-analytical statistics are calculated . See also ElecSignalStat::ResetOptElecFiltersForGaussianStatistics().

By: Ivan Lima (5/16/02)

References ElecSignalStat(), OptSignal::GetNumChannels(), InitializedGaussianStatisticsFlag, LogFile, LogFileSeparator(), oElecFilter2, oElecFilter4, oElecSignalStat2, oElecSignalStat4, oOptFilter2, oOptFilter4, oOptSignal, oOptSignal1, oOptSignal2, oOptSignal3, oOptSignal4, oOptSignalX, oOrigOptFilter, oPhotodetector, oPhotodetector2, oPhotodetector4, OptSignal::ReduceToSingleChannel(), Photodetector::SetOptSignal(), StringLength, and VariancesCurrentSignalNoiseBeating.

Referenced by GaussianReceiver::GaussianReceiver(), ReceiverSubsystem::InitSimplifiedReceiver(), and ReceiverSemiAnalytical::ReceiverSemiAnalytical().

void ElecSignalStat::SetTimeSlices ( void )

References GetClockRecoveryTime(), OptSignal::GetDeltaTime(), OptSignal::GetStringLength(), OptSignal::GetTimeWindow(), NumTimeSlices, oOptSignal, TimeSliceIndices, and TimeSlices.

Referenced by OutputGaussianStatisticsFromMonteCarlo().

void ElecSignalStat::SetUseAbsCurrentFlag ( bool Value )

Use after constructor if want to take abs(Current) rather than real(Current) when computing statistics. (Mostly for backward compatibility

Instead of taking abs(Current) to get stats we take real(Current). This allows for negative currents, which could arise because of response function of electric filter or because of shot noise in photodetector.

To allow for backward compatibility, there is an optional flag called UseAbsCurrentFlag. If this flag is 1, then the code takes abs(Current). If the flag is 0 the code takes real(Current).

The constructor sets UseAbsCurrentFlag = 0 since this is the physically correct thing to do. If you want UseAbsCurrentFlag = 1 SetUseAbsCurrentFlag(1) straight after the constructor is called.

References LogFile, and UseAbsCurrentFlag.

double ElecSignalStat::testsq ( double ax )

References sq().

void ElecSignalStat::UpdateClock ( void ) [private]

Internal Function.

References GetTargetIndexTime(), NumCallsToUpdateClock, and SumTargetIndexTimesForUpdateClock.

Referenced by UpdateEqualizedPerformanceStatistics(), and UpdatePerformanceStatistics().

void ElecSignalStat::UpdateEqualizedPerformanceStatistics ( void )

A version of UpdatePerformanceStatistics() used in conjunction with an ElecEqualizer object. The BitIntensity array must have been previously set by the ElecEqualizer object.

References BitIntensity, BitString::GetBit(), OptSignal::oBitString, ObjectInitialized, oOptSignal, Periodicity(), sq(), sqrt(), StringLength, UpdateClock(), and UpdateMoments().

Referenced by ComputeEqualizedPerformanceStatistics().

void ElecSignalStat::UpdateMoments	(	int	BitIndex,
		double	PowerElecSignal
	)			`[private]`

Internal function called by UpdatePerformanceStatistics.

References Bit0_PowerMax, Bit0_PowerSquareSum, Bit0_PowerSum, Bit1_PowerMin, Bit1_PowerSquareSum, Bit1_PowerSum, ComputePatternStatsFlag, DoGaussianPDFsMonteCarloFlag, BitString::GetBit(), IsolatedBit0_PowerMax, IsolatedBit0_PowerSquareSum, IsolatedBit0_PowerSum, IsolatedBit1_PowerMin, IsolatedBit1_PowerSquareSum, IsolatedBit1_PowerSum, OptSignal::oBitString, oOptSignal, Periodicity(), PowerSquareSumBit, PowerSumBit, qtBit, qtBit0, qtBit1, qtIsolatedBit0, qtIsolatedBit1, sq(), StringLength, and UpdatePatternStats().

Referenced by UpdateEqualizedPerformanceStatistics(), and UpdatePerformanceStatistics().

void ElecSignalStat::UpdatePatternStats	(	int	BitIndex,
		double	PowerElecSignal
	)

Call this function once per Monte Carlo run for each bit.

Called by ElecSignalStat::UpdateMoments

Updates values of

NumOccurencesPattern
VoltageSumPattern
VoltageSumSquaresPattern
MaximumVoltagePattern
MinimumVoltagePattern

References BitString::GetBit(), GetPatternIndex(), MaximumVoltagePattern, MinimumVoltagePattern, NumOccurencesPattern, OptSignal::oBitString, oOptSignal, PatternArray, PatternLength, sq(), StringLength, VoltageSumPattern, VoltageSumSquaresPattern, and OptSignal::WrapPeriodically().

Referenced by UpdateMoments().

void ElecSignalStat::UpdatePerformanceStatistics ( void )

Computes intensity of received current in each bit at clock recovery time and updates variables that store mean and standard deviation of current in each bit. Used in Monte Carlo simulations with noise. Called by ComputePerformanceStatistics().

Calculates intensity of received current in each bit at clock recovery time and updates variables that store mean and standard deviation of current in each bit. Used in Monte Carlo simulations.

Method first finds optimal correlatation between the bit string and the bit intensity array which gives the power of the elecectrically filtered signal at the recovery time.

The idea is that we want to find the shift in the bit sequence which maximizes the correlation between these two vectors.

If the match is not optimal then (1) Mean Ones decreases from optimal value as some physical ones are not lined up with logical ones. (2) Mean Zeros increases. (3) So Mean Ones - Means Zeros decreases (4) StdDev ones and zeros will both increase (5) So Q = Ratio (3)/(4) will be forced to decrease

So our algorithm is to walk through the shifts of the bit string computing Q values and choose the maximal Q value.

One reason you need to do this correlation is that different channels travel at different speeds relative to the central frequency. One way to test this method is to see that the computation of Q for a given physical channel is invariant to shifts in the central frequency of the slowly-varying envelope approximation. To get good agreement though you need DeltaTime to be small enough.

Another reason why one needs to do this correlation is because the PMD can shift the bits beyound one bit period. Hence, one could find a Q factor much smaller than it really is.

References BitIntensity, BitStringShift, BitString::GetBit(), GetTargetIndexTime(), OptSignal::oBitString, ObjectInitialized, oOptSignal, Periodicity(), qtPoints, sfftPM, sq(), sqrt(), StringLength, fftPowerMatrices::tPowerSignal, UpdateClock(), UpdateMoments(), and UseAbsCurrentFlag.

Referenced by ComputePerformanceStatistics(), ComputePerformanceStatisticsNoTimeShift(), ReceiverSubsystem::ReceiveSignal(), and ReceiverSemiAnalytical::ReceiveSignalMonteCarlo().

void ElecSignalStat::WriteFileEyeDiagram ( string outFile )

Writes an eye diagram to a file. Useful with noise-free simulations.

References DeltaTime, FirstTargetIndexTime, GetBit0_PowerMean(), GetBit1_PowerMean(), GetTargetIndexTime(), ObjectInitialized, Periodicity(), qtPoints, qtRunsEyeDiagram, sfftPM, StringLength, SumRelTargetIndexTime, and fftPowerMatrices::tPowerSignal.

Referenced by ReceiverSubsystem::ReceiveSignal(), ReceiverSubsystem::ReceiveSignalBackToBack(), ReceiverSubsystem::ReceiveSignalBackToBackCenterFreq(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), and ReceiverSubsystem::ReceiveSignalCenterFreq().

void ElecSignalStat::WriteFileEyeDiagramFixedCLK ( string outFile )

Writes an eye diagram to a file. Useful with Monte Carlo simulations with noise.

References DeltaTime, GetBit0_PowerMean(), GetBit1_PowerMean(), GetTargetIndexTime(), ObjectInitialized, Periodicity(), qtPoints, qtRunsEyeDiagramFixedCLK, sfftPM, StringLength, and fftPowerMatrices::tPowerSignal.

void ElecSignalStat::WriteFilePairVectors	(	double *	x,
		double *	y,
		int	dim,
		string	OutFileName
	)

Referenced by ComputeMinimumBERAndDecisionThreshold(), and WriteFilePDFTimeSlicesAndAveragePDFs().

void ElecSignalStat::WriteFilePatternStats ( string OutFileName )

Writes the pattern stats to a file.

References GetPattern(), MaximumVoltagePattern, MeanPattern, MinimumVoltagePattern, NumOccurencesPattern, NumPatterns, PatternArray, PatternLength, PreparePatternStatsForOutput(), and StdDevPattern.

void ElecSignalStat::WriteFilePDFTimeSlicesAndAveragePDFs ( string FileID )

References AverageGaussianPDFOnes, AverageGaussianPDFZeros, CurrentVector, GaussianPDFTimeSlices, NumPointsCurrent, NumTimeSlices, and WriteFilePairVectors().

Referenced by OutputGaussianStatisticsFromMonteCarlo().

string ElecSignalStat::WriteTypeClockRecovery ( void )

Returns the type of the clock recovery method.

References BEST_MIN_EYE_OPENING, BEST_Q_FACTOR, BINARY_EXOR, CONTINUOUS_EXOR, DIFFERENTIATE_SIGNAL, FREQ_DOUBLING, NRZ_HALF_SIGNAL_FREQ, RZ_SIGNAL_FREQ, TypeClockRecovery, and USER_SET.

Referenced by ElecSignalStat(), and InitElecSignalStat().

Member Data Documentation

double ElecSignalStat::AmplitudeMargin [private]

Referenced by GetAmplitudeMargin(), GetQ_FactorGaussianStatisticsFirstPattern(), and GetQ_FactorGaussianStatisticsWorstPattern().

double* ElecSignalStat::AverageGaussianPDFOnes [private]

Referenced by ComputeAveragePDFs(), ComputeMinimumBERAndDecisionThreshold(), ElecSignalStat(), WriteFilePDFTimeSlicesAndAveragePDFs(), and ~ElecSignalStat().

double* ElecSignalStat::AverageGaussianPDFZeros [private]

Referenced by ComputeAveragePDFs(), ComputeMinimumBERAndDecisionThreshold(), ElecSignalStat(), WriteFilePDFTimeSlicesAndAveragePDFs(), and ~ElecSignalStat().

double ElecSignalStat::BER_GaussianStatistics [private]

Referenced by GetQ_FactorGaussianStatisticsFromBER(), and MinimizeSqQ_FactorVersusBER().

double* ElecSignalStat::BERGaussianPDFs [private]

Referenced by ComputeMinimumBERAndDecisionThreshold(), ElecSignalStat(), and ~ElecSignalStat().

double ElecSignalStat::Bit0_PowerMax [private]

Referenced by ClearElecSignalStat(), GetBit0_PowerMax(), GetMinAmplitudeMargin(), and UpdateMoments().

double ElecSignalStat::Bit0_PowerSquareSum [private]

Referenced by ClearElecSignalStat(), GetBit0_PowerStdDev(), and UpdateMoments().

double ElecSignalStat::Bit0_PowerSum [private]

Referenced by ClearElecSignalStat(), GetBit0_PowerMean(), and UpdateMoments().

double ElecSignalStat::Bit1_PowerMin [private]

Referenced by ClearElecSignalStat(), GetBit1_PowerMin(), GetMinAmplitudeMargin(), and UpdateMoments().

double ElecSignalStat::Bit1_PowerSquareSum [private]

Referenced by ClearElecSignalStat(), GetBit1_PowerStdDev(), and UpdateMoments().

double ElecSignalStat::Bit1_PowerSum [private]

Referenced by ClearElecSignalStat(), GetBit1_PowerMean(), and UpdateMoments().

double ElecSignalStat::BitErrorRate [private]

double* ElecSignalStat::BitIntensity

Referenced by ElecEqualizer::EqualizeBitIntensityWienerCplx(), ElecEqualizer::EqualizeBitIntensityWienerReal(), GetCurrentBit(), GetCurrentBitFromRecoveredSignal(), GetCurrentFirstBit0(), GetCurrentFirstBit1(), GetMaxCurrentBit0(), GetMeanCurrentIsolatedBit0(), GetMeanCurrentIsolatedBit1(), GetMinCurrentBit1(), InitElecSignalStat(), UpdateEqualizedPerformanceStatistics(), UpdatePerformanceStatistics(), and ~ElecSignalStat().

double ElecSignalStat::BitLength [private]

Referenced by GetBitLength(), and InitElecSignalStat().

double ElecSignalStat::BitRateChann [private]

Referenced by ComputeTargetFreqIndex(), GetTargetTime(), and InitElecSignalStat().

int* ElecSignalStat::BitString [private]

int ElecSignalStat::BitStringShift [private]

Referenced by GetBitStringShift(), and UpdatePerformanceStatistics().

double ElecSignalStat::ClockRecoveryTime [private]

Referenced by ClearElecSignalStat(), ComputePerformanceStatistics(), and GetClockRecoveryTime().

double ElecSignalStat::ClockRecoveryTimeBeforeTimeShift [private]

Referenced by ComputePerformanceStatistics(), and GetClockRecoveryTimeBeforeTimeShift().

bool ElecSignalStat::ComputePatternStatsFlag [private]

Flag is 1 if user wants to compute stats for patterns. Initialized from input parameter file by constructor

Referenced by ClearElecSignalStat(), ElecSignalStat(), InitElecSignalStat(), UpdateMoments(), and ~ElecSignalStat().

double* ElecSignalStat::CurrentVector [private]

Referenced by ComputeAveragePDFs(), ComputeMinimumBERAndDecisionThreshold(), ElecSignalStat(), WriteFilePDFTimeSlicesAndAveragePDFs(), and ~ElecSignalStat().

double ElecSignalStat::DeltaCurrent [private]

Referenced by ElecSignalStat().

double ElecSignalStat::DeltaFreq [private]

Referenced by GetMeanASE_ASE(), GetMeanNoiseGaussianStatistics(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_TimeIndex(), and InitElecSignalStat().

double ElecSignalStat::DeltaTime [private]

Referenced by GetClockTimeForMonteCarloEye(), GetDeltaTime(), GetTargetIndexTime(), GetTargetTime(), InitElecSignalStat(), WriteFileEyeDiagram(), and WriteFileEyeDiagramFixedCLK().

bool ElecSignalStat::DoGaussianPDFsMonteCarloFlag [private]

Referenced by ClearElecSignalStat(), ElecSignalStat(), InitElecSignalStat(), OutputGaussianStatisticsFromMonteCarlo(), UpdateMoments(), and ~ElecSignalStat().

cfftw* ElecSignalStat::fft [private]

Referenced by InitElecSignalStat().

int ElecSignalStat::FirstTargetIndexTime [private]

Referenced by WriteFileEyeDiagram().

double** ElecSignalStat::GaussianPDFTimeSlices [private]

Referenced by ComputeAveragePDFs(), ElecSignalStat(), WriteFilePDFTimeSlicesAndAveragePDFs(), and ~ElecSignalStat().

double* ElecSignalStat::GaussianPDFTimeSlicesStorageVec [private]

Referenced by ElecSignalStat(), and ~ElecSignalStat().

double ElecSignalStat::GaussianSmoothingFWHM [private]

Referenced by ElecSignalStat(), and InitElecSignalStat().

bool ElecSignalStat::InitializedGaussianStatisticsFlag [private]

Referenced by CheckGaussianStatisticsInitialization(), InitElecSignalStat(), SetOptElecFiltersForGaussianStatistics(), and ~ElecSignalStat().

double ElecSignalStat::InputClockRecoveryTime [private]

Referenced by ElecSignalStat(), GetTargetIndexTime(), and GetTargetTime().

double ElecSignalStat::IsolatedBit0_PowerMax [private]

Referenced by ClearElecSignalStat(), GetIsolatedBit0_PowerMax(), and UpdateMoments().

double ElecSignalStat::IsolatedBit0_PowerSquareSum [private]

Referenced by ClearElecSignalStat(), GetIsolatedBit0_PowerStdDev(), and UpdateMoments().

double ElecSignalStat::IsolatedBit0_PowerSum [private]

Referenced by ClearElecSignalStat(), GetIsolatedBit0_PowerMean(), and UpdateMoments().

double ElecSignalStat::IsolatedBit1_PowerMin [private]

Referenced by ClearElecSignalStat(), GetIsolatedBit1_PowerMin(), and UpdateMoments().

double ElecSignalStat::IsolatedBit1_PowerSquareSum [private]

Referenced by ClearElecSignalStat(), GetIsolatedBit1_PowerStdDev(), and UpdateMoments().

double ElecSignalStat::IsolatedBit1_PowerSum [private]

Referenced by ClearElecSignalStat(), GetIsolatedBit1_PowerMean(), and UpdateMoments().

double ElecSignalStat::MaxCurrent [private]

Referenced by ElecSignalStat().

double* ElecSignalStat::MaximumVoltagePattern [private]

Array to store the maximum voltage for each pattern.

Referenced by AllocateMemoryForPatternStats(), ClearPatternStats(), ReleaseMemoryForPatternStats(), UpdatePatternStats(), and WriteFilePatternStats().

double* ElecSignalStat::MeanCurrentMonteCarlo [private]

Referenced by ComputeAndOutputMomentsFromMonteCarlo(), ComputeAveragePDFs(), ElecSignalStat(), and ~ElecSignalStat().

double* ElecSignalStat::MeanPattern [private]

Array of the means of the patterns, indexed by the PaternIndicies. The mean of a pattern is the mean of the voltage in the center bit of the given pattern

Referenced by AllocateMemoryForPatternStats(), ClearPatternStats(), PreparePatternStatsForOutput(), ReleaseMemoryForPatternStats(), and WriteFilePatternStats().

double ElecSignalStat::MeanPower [private]

Referenced by GetMeanPower().

double ElecSignalStat::MinCurrent [private]

Referenced by ElecSignalStat().

double* ElecSignalStat::MinimumVoltagePattern [private]

Array to store the minimum voltage for each pattern.

Referenced by AllocateMemoryForPatternStats(), ClearPatternStats(), ReleaseMemoryForPatternStats(), UpdatePatternStats(), and WriteFilePatternStats().

double ElecSignalStat::NoiseSpectralDensityX_PD [private]

Referenced by GetBER_GaussianStatisticsFromDecisionThreshold(), and GetQ_FactorGaussianStatisticsFromBER().

double ElecSignalStat::NoiseSpectralDensityY_PD [private]

Referenced by GetBER_GaussianStatisticsFromDecisionThreshold(), and GetQ_FactorGaussianStatisticsFromBER().

int ElecSignalStat::NumCallsToUpdateClock [private]

Referenced by ClearElecSignalStat(), GetClockTimeForMonteCarloEye(), and UpdateClock().

int* ElecSignalStat::NumOccurencesPattern [private]

Stores the total number of occurneces of each pattern.

Referenced by AllocateMemoryForPatternStats(), ClearPatternStats(), PreparePatternStatsForOutput(), ReleaseMemoryForPatternStats(), UpdatePatternStats(), and WriteFilePatternStats().

int ElecSignalStat::NumPatterns [private]

The number of patterns which is pow(2,PatternLength).

Referenced by AllocateMemoryForPatternStats(), ClearPatternStats(), EnumeratePatterns(), InitPatternStats(), PreparePatternStatsForOutput(), and WriteFilePatternStats().

int ElecSignalStat::NumPointsCurrent [private]

Referenced by ComputeAveragePDFs(), ComputeMinimumBERAndDecisionThreshold(), ElecSignalStat(), and WriteFilePDFTimeSlicesAndAveragePDFs().

int ElecSignalStat::NumTimeSlices [private]

Referenced by ComputeAndOutputMomentsFromMonteCarlo(), ComputeAveragePDFs(), ElecSignalStat(), SetTimeSlices(), WriteFilePDFTimeSlicesAndAveragePDFs(), and ~ElecSignalStat().

int ElecSignalStat::ObjectInitialized [private]

Referenced by InitElecSignalStat(), UpdateEqualizedPerformanceStatistics(), UpdatePerformanceStatistics(), WriteFileEyeDiagram(), WriteFileEyeDiagramFixedCLK(), and ~ElecSignalStat().

ElecFilter* ElecSignalStat::oElecFilter2 [private]

ElecFilter* ElecSignalStat::oElecFilter4 [private]

Referenced by GetQ_FactorGaussianStatisticsFromBER(), and SetOptElecFiltersForGaussianStatistics().

ElecSignalStat* ElecSignalStat::oElecSignalStat2 [private]

ElecSignalStat* ElecSignalStat::oElecSignalStat4 [private]

Referenced by GetBER_GaussianStatistics(), GetBER_GaussianStatisticsFromDecisionThreshold(), GetQ_FactorGaussianStatisticsFromBER(), and SetOptElecFiltersForGaussianStatistics().

OptFilter* ElecSignalStat::oOptFilter2 [private]

OptFilter* ElecSignalStat::oOptFilter4 [private]

Referenced by GetQ_FactorGaussianStatisticsFromBER(), and SetOptElecFiltersForGaussianStatistics().

OptSignal* ElecSignalStat::oOptSignal

OptSignal* ElecSignalStat::oOptSignal1 [private]

Referenced by GetIntegralForSignalNoiseVariance(), GetStdDevSignal_ASE_TimeIndex(), ResetOptElecFiltersForGaussianStatistics(), SetOptElecFiltersForGaussianStatistics(), and ~ElecSignalStat().

OptSignal* ElecSignalStat::oOptSignal2 [private]

OptSignal* ElecSignalStat::oOptSignal3 [private]

Referenced by GetIntegralForNoiseNoiseVarianceGaussianStatistics(), GetIntegralForSignalNoiseVariance(), GetMeanASE_ASE(), GetMeanNoiseGaussianStatistics(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_TimeIndex(), ResetOptElecFiltersForGaussianStatistics(), SetOptElecFiltersForGaussianStatistics(), and ~ElecSignalStat().

OptSignal* ElecSignalStat::oOptSignal4 [private]

Referenced by GetIntegralForSignalNoiseVariance(), GetQ_FactorGaussianStatisticsFromBER(), ResetOptElecFiltersForGaussianStatistics(), SetOptElecFiltersForGaussianStatistics(), and ~ElecSignalStat().

OptSignal* ElecSignalStat::oOptSignalX [private]

Referenced by ResetOptElecFiltersForGaussianStatistics(), SetOptElecFiltersForGaussianStatistics(), and ~ElecSignalStat().

OptFilter* ElecSignalStat::oOrigOptFilter [private]

Referenced by ResetOptElecFiltersForGaussianStatistics(), and SetOptElecFiltersForGaussianStatistics().

Photodetector* ElecSignalStat::oPhotodetector

Referenced by ComputePerformanceStatistics(), ComputePhaseTargetFreq(), InitElecSignalStat(), and SetOptElecFiltersForGaussianStatistics().

Photodetector* ElecSignalStat::oPhotodetector2 [private]

Referenced by GetCurrentExtinctionRatio_GaussianStatistics(), GetEnhancementFactor(), GetESNR_GaussianStatistics(), GetESNR_Mark_GaussianStatistics(), GetIntegralForNoiseNoiseVarianceGaussianStatistics(), GetIntegralForSignalNoiseVariance(), GetMeanASE_ASE(), GetMeanNoiseGaussianStatistics(), GetNoiseNoiseVarianceGaussianStatistics(), GetNormalizedEnhancementFactor(), GetNormKcoeff0_GaussianStatistics(), GetNormKcoeff1_GaussianStatistics(), GetNormNumberNoiseModes_GaussianStatistics(), GetQ_FactorFromESNR_GaussianStatistics(), GetQ_FactorGaussianStatisticsFirstPattern(), GetQ_FactorGaussianStatisticsFromBER(), GetQ_FactorGaussianStatisticsWorstPattern(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), GetStdDevSignal_ASE_TimeIndex(), GetStdDevWorstBit0_GaussianStatistics(), GetStdDevWorstBit1_GaussianStatistics(), ResetOptElecFiltersForGaussianStatistics(), SetOptElecFiltersForGaussianStatistics(), and ~ElecSignalStat().

Photodetector* ElecSignalStat::oPhotodetector4 [private]

Referenced by GetQ_FactorGaussianStatisticsFromBER(), and SetOptElecFiltersForGaussianStatistics().

bool* ElecSignalStat::PatternArray [private]

A bool array to store a pattern.

Referenced by AllocateMemoryForPatternStats(), ClearPatternStats(), EnumeratePatterns(), ReleaseMemoryForPatternStats(), UpdatePatternStats(), and WriteFilePatternStats().

int ElecSignalStat::PatternLength [private]

Lenth of the patterns for which stats are to be computed. Must be odd Initialized from input parameter file by constructor

Referenced by AllocateMemoryForPatternStats(), ElecSignalStat(), EnumeratePatterns(), GetCenterBitPattern(), GetPattern(), InitPatternStats(), UpdatePatternStats(), and WriteFilePatternStats().

double* ElecSignalStat::PowerSquareSumBit [private]

Referenced by ClearGaussianPDFsMonteCarlo(), ElecSignalStat(), GetPowerStdDevBit(), UpdateMoments(), and ~ElecSignalStat().

double* ElecSignalStat::PowerSumBit [private]

Referenced by ClearGaussianPDFsMonteCarlo(), ElecSignalStat(), GetPowerMeanBit(), UpdateMoments(), and ~ElecSignalStat().

double ElecSignalStat::Q_Factor [private]

Referenced by GetQ_FactorGaussianStatisticsFromBER().

double ElecSignalStat::Q_FactorPre [private]

Referenced by GetQ_FactorGaussianStatisticsFromBER(), and InitElecSignalStat().

int* ElecSignalStat::qtBit [private]

Referenced by ClearGaussianPDFsMonteCarlo(), ElecSignalStat(), GetPowerMeanBit(), GetPowerStdDevBit(), UpdateMoments(), and ~ElecSignalStat().

int ElecSignalStat::qtBit0 [private]

Referenced by ClearElecSignalStat(), GetBER_GaussianStatisticsFromDecisionThreshold(), GetBit0_PowerMean(), GetBit0_PowerStdDev(), GetQtBit0(), and UpdateMoments().

int ElecSignalStat::qtBit1 [private]

Referenced by ClearElecSignalStat(), GetBER_GaussianStatisticsFromDecisionThreshold(), GetBit1_PowerMean(), GetBit1_PowerStdDev(), GetQtBit1(), and UpdateMoments().

int ElecSignalStat::qtIsolatedBit0 [private]

Referenced by ClearElecSignalStat(), GetIsolatedBit0_PowerMean(), GetIsolatedBit0_PowerStdDev(), GetMeanCurrentIsolatedBit0(), GetQtIsolatedBit0(), and UpdateMoments().

int ElecSignalStat::qtIsolatedBit1 [private]

Referenced by ClearElecSignalStat(), GetIsolatedBit1_PowerMean(), GetIsolatedBit1_PowerStdDev(), GetMeanCurrentIsolatedBit1(), GetQtIsolatedBit1(), and UpdateMoments().

int ElecSignalStat::qtPoints [private]

Referenced by GetClockTimeForMonteCarloEye(), GetIntegralForNoiseNoiseVarianceGaussianStatistics(), GetIntegralForSignalNoiseVariance(), GetMeanASE_ASE(), GetMeanNoiseGaussianStatistics(), GetQtPoints(), GetStdDevASE_ASE(), GetStdDevSignal_ASE_BitSlot(), GetStdDevSignal_ASE_TimeIndex(), GetTargetIndexTime(), GetTargetIndexTimeBestMinEyeOpening(), GetTargetIndexTimeBestQ_Factor(), InitElecSignalStat(), UpdatePerformanceStatistics(), WriteFileEyeDiagram(), and WriteFileEyeDiagramFixedCLK().

int ElecSignalStat::qtPointsLast [private]

int ElecSignalStat::qtRunsEyeDiagram [private]

Referenced by ClearElecSignalStat(), and WriteFileEyeDiagram().

int ElecSignalStat::qtRunsEyeDiagramFixedCLK [private]

Referenced by ClearElecSignalStat(), and WriteFileEyeDiagramFixedCLK().

fftPowerMatrices ElecSignalStat::sfftPM [private]

Referenced by ComputePhaseTargetFreq(), GetSignalTimeDomain(), GetTargetIndexTimeBestMinEyeOpening(), GetTargetIndexTimeBestQ_Factor(), InitElecSignalStat(), UpdatePerformanceStatistics(), WriteFileEyeDiagram(), and WriteFileEyeDiagramFixedCLK().

double* ElecSignalStat::StdDevCurrentMonteCarlo [private]

Referenced by ComputeAndOutputMomentsFromMonteCarlo(), ComputeAveragePDFs(), ElecSignalStat(), and ~ElecSignalStat().

double* ElecSignalStat::StdDevPattern [private]

Array of the standard devaitions of the patterns, indexed by the PaternIndicies. The std dev of a pattern is the std dev of the voltage in the center bit of the given pattern

Referenced by AllocateMemoryForPatternStats(), ClearPatternStats(), PreparePatternStatsForOutput(), ReleaseMemoryForPatternStats(), and WriteFilePatternStats().