Public Member Functions | Private Attributes

OptFilter Class Reference

#include <ocsOptFilter.hh>

List of all members.

Public Member Functions

 OptFilter ()
void InitOptFilter (cfftw *fft2, fftMatrices sfftM2, OptFilterParam soOptFilter)
 OptFilter (OptFilter *oOrigOptFilter, OptSignal *oOptSignal2)
void FilterOptSignal ()
 Filters optical signal.
void FilterOptSignal_OLD ()
void SwitchOptSignalData (OptSignal *oOptSignal2)
typeOptFilter GetTypeOptFilter (void)
int GetOrderOptFilter (void)
double GetRelativeCenterFreqOptFilter ()
double GetFreqFWHM_OptFilter (void)
void SetFreqFWHM_OptFilter (double FreqFWHM_OptFilter2)
 OptFilter (string InFileName, OptSignal *oOptSignal2)
 OptFilter (string InFileName, typeSimulation TypeSimulation2)
 OptFilter (int TypeOptFilter2, int OrderOptFilter2, double FreqFWHM_OptFilter2, typeSimulation TypeSimulation2)
double GetPowerEquivalentSpectralWidth (void)
void WriteFilterImpulseResponse (string FileNameImpulseResponseTime, string FileNameImpulseResponseFreq)
void SetRelativeCenterFreq (double RelativeCenterFreqOptFilter2)
void SetOpticalData (cfftw *fft2, fftMatrices sfftM2)
void GaussianTunableOpticalFilter (cplx *TimeSignal, cplx *FreqSignal)
void SuperGaussianTunableOpticalFilter (cplx *TimeSignal, cplx *FreqSignal)
void OpticalBandpassFilter (cplx *TimeSignal, cplx *FreqSignal)
void FabryPerotFilter (cplx *TimeSignal, cplx *FreqSignal)
void SantecTunableOpticalFilter (cplx *TimeSignal, cplx *FreqSignal)
void DemuxLoopTunableOpticalFilter (cplx *TimeSignal, cplx *FreqSignal)
 Added by Paola Griggio for Ciena experiment.
void TunableFilterOptSignal ()
void WriteFreqPowerGaussianFilter (string OutFileName)
void WriteFreqPowerSuperGaussianFilter (string OutFileName)
void WriteFreqPowerBandpassFilter (string OutFileName)
 by Anshul. writes |H(f)|^2 for a bandpass filter.
void WriteFreqPowerFabryPerotFilter (string OutFileName)
 by Anshul. writes |H(f)|^2 for a FabryPerot filter.
void WriteFreqPowerSantecFilter (string OutFileName)
double SantecPoly (double x)
void WriteFreqPowerDemuxLoopFilter (string OutFileName)
 Added by Paola Griggio for Ciena experiment.
double DemuxLoopPoly (double x)
 Added by Paola Griggio for Ciena experiment.
bool GetDoAdditionalFiltering (void)

Private Attributes

OptSignal * oOptSignal
cfftw * fft
fftMatrices sfftM
int ObjectInitialized
typeOptFilter TypeOptFilter
int OrderOptFilter
typeSimulation TypeSimulation
double FreqFWHM_OptFilter
double RelativeCenterFreqOptFilter
bool DoAdditionalFilteringFlag
int DebugLevel

Constructor & Destructor Documentation

OptFilter::OptFilter (  ) 

References ObjectInitialized.

OptFilter::OptFilter ( OptFilter *  oOrigOptFilter,
OptSignal *  oOptSignal2 
)

References BANDPASS, BOTH_SANTEC, CIENA_DEMUX, DebugLevel, FABRY_PEROT, OptSignal::fft, fft, FreqFWHM_OptFilter, GetFreqFWHM_OptFilter(), GetOrderOptFilter(), GetRelativeCenterFreqOptFilter(), GetTypeOptFilter(), OptSignal::GetTypeSimulation(), LogFile, LogFileSeparator(), NOFILTER, ObjectInitialized, oOptSignal, OrderOptFilter, RelativeCenterFreqOptFilter, SANTEC, OptSignal::sfftM, sfftM, SUPERGAUSS, TypeOptFilter, and TypeSimulation.

OptFilter::OptFilter ( string  InFileName,
OptSignal *  oOptSignal2 
)

References BANDPASS, BOTH_SANTEC, CIENA_DEMUX, DebugLevel, FABRY_PEROT, OptSignal::fft, fft, FreqFWHM_OptFilter, OptSignal::GetDebugLevel(), OptSignal::GetTypeSimulation(), LogFile, LogFileSeparator(), LOWER_AND_UPPER, LOWER_ONLY, NO_BOUNDS, NOFILTER, ObjectInitialized, oOptSignal, OrderOptFilter, ReadDouble(), ReadInt(), RelativeCenterFreqOptFilter, SANTEC, OptSignal::sfftM, sfftM, SUPERGAUSS, TypeOptFilter, and TypeSimulation.

OptFilter::OptFilter ( string  InFileName,
typeSimulation  TypeSimulation2 
)

References BANDPASS, BOTH_SANTEC, DebugLevel, DoAdditionalFilteringFlag, FABRY_PEROT, FreqFWHM_OptFilter, LogFile, LogFileSeparator(), LOWER_AND_UPPER, LOWER_ONLY, NOFILTER, ObjectInitialized, OPTIONAL_NO_WARNING, OrderOptFilter, ReadDouble(), ReadInt(), SANTEC, SUPERGAUSS, TypeOptFilter, and TypeSimulation.

OptFilter::OptFilter ( int  TypeOptFilter2,
int  OrderOptFilter2,
double  FreqFWHM_OptFilter2,
typeSimulation  TypeSimulation2 
)

References FreqFWHM_OptFilter, ObjectInitialized, OrderOptFilter, TypeOptFilter, and TypeSimulation.

Member Function Documentation

double OptFilter::DemuxLoopPoly ( double  x  ) 

Added by Paola Griggio for Ciena experiment.

Referenced by WriteFreqPowerDemuxLoopFilter().

void OptFilter::DemuxLoopTunableOpticalFilter ( cplx *  TimeSignal,
cplx *  FreqSignal 
)

Added by Paola Griggio for Ciena experiment.

References dB2Linear(), and log().

Referenced by FilterOptSignal_OLD(), and TunableFilterOptSignal().

void OptFilter::FabryPerotFilter ( cplx *  TimeSignal,
cplx *  FreqSignal 
)

Added by Anshul Apr 04.

3 mirror fabry perot filter. Reference : PTL vol 8 no 9 Sep 96. Freire, Carvalho and da Silva

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

Referenced by TunableFilterOptSignal().

void OptFilter::FilterOptSignal ( void   ) 

Filters optical signal.

This method was changed by JZ, April 2003. It now calls TunableFilterOptSignal() The effect is same as the previous version which is now in FilterOptSignal_OLD() except that if a SUPERGAUSS filter is centered at RelativeCenterFreqOptFilter rather than at 0.

References TunableFilterOptSignal().

Referenced by ChiSquareReceiver::ComputeTimeIndependentPartOfFilterMatrix(), OptDemuxer::DemuxChannel(), ElecSignalStat::GetCurrentExtinctionRatio_GaussianStatistics(), ElecSignalStat::GetEnhancementFactor(), ElecSignalStat::GetESNR_GaussianStatistics(), ElecSignalStat::GetESNR_Mark_GaussianStatistics(), ElecSignalStat::GetIntegralForNoiseNoiseVarianceGaussianStatistics(), ElecSignalStat::GetIntegralForSignalNoiseVariance(), ElecSignalStat::GetMeanASE_ASE(), ElecSignalStat::GetMeanNoiseGaussianStatistics(), ElecSignalStat::GetNormalizedEnhancementFactor(), ElecSignalStat::GetNormKcoeff0_GaussianStatistics(), ElecSignalStat::GetNormKcoeff1_GaussianStatistics(), ElecSignalStat::GetNormNumberNoiseModes_GaussianStatistics(), GetPowerEquivalentSpectralWidth(), ElecSignalStat::GetQ_FactorFromESNR_GaussianStatistics(), ElecSignalStat::GetQ_FactorGaussianStatisticsFirstPattern(), ElecSignalStat::GetQ_FactorGaussianStatisticsFromBER(), ElecSignalStat::GetQ_FactorGaussianStatisticsWorstPattern(), ElecSignalStat::GetStdDevASE_ASE(), ElecSignalStat::GetStdDevSignal_ASE_BitSlot(), ElecSignalStat::GetStdDevSignal_ASE_TimeIndex(), ElecSignalStat::GetStdDevWorstBit0_GaussianStatistics(), ElecSignalStat::GetStdDevWorstBit1_GaussianStatistics(), ReceiverSubsystem::ReceiveSignal(), ReceiverSubsystem::ReceiveSignalBackToBack(), and WriteFilterImpulseResponse().

void OptFilter::FilterOptSignal_OLD (  ) 

References BOTH_SANTEC, CIENA_DEMUX, DemuxLoopTunableOpticalFilter(), fft, fftMatrices::fOptSignalX, fftMatrices::fOptSignalY, FreqFWHM_OptFilter, NOFILTER, ObjectInitialized, optical_filter(), OrderOptFilter, SANTEC, SantecTunableOpticalFilter(), sfftM, SUPERGAUSS, fftMatrices::tOptSignalX, fftMatrices::tOptSignalY, TypeOptFilter, TypeSimulation, and VECTOR.

void OptFilter::GaussianTunableOpticalFilter ( cplx *  TimeSignal,
cplx *  FreqSignal 
)

References sq().

Referenced by TunableFilterOptSignal().

bool OptFilter::GetDoAdditionalFiltering ( void   )  [inline]

Referenced by OptDemuxer::OptDemuxer().

double OptFilter::GetFreqFWHM_OptFilter ( void   )  [inline]

References FreqFWHM_OptFilter.

Referenced by OptFilter().

int OptFilter::GetOrderOptFilter ( void   )  [inline]

References OrderOptFilter.

Referenced by OptFilter().

double OptFilter::GetPowerEquivalentSpectralWidth ( void   ) 

References FilterOptSignal(), fftMatrices::fOptSignalX, OptSignal::GenerateImpulseSignal(), OptSignal::GetDeltaFreq(), OptSignal::GetQtPoints(), oOptSignal, OptSignal::sfftM, and sq().

double OptFilter::GetRelativeCenterFreqOptFilter (  )  [inline]

References RelativeCenterFreqOptFilter.

Referenced by OptFilter(), and ElecSignalStat::ResetOptElecFiltersForGaussianStatistics().

typeOptFilter OptFilter::GetTypeOptFilter ( void   )  [inline]

References TypeOptFilter.

Referenced by OptFilter().

void OptFilter::InitOptFilter ( cfftw *  fft2,
fftMatrices  sfftM2,
OptFilterParam  soOptFilter 
)

References OptFilterParam::CenterFreqOptFilter, fft, OptFilterParam::FreqFWHM_OptFilter, FreqFWHM_OptFilter, ObjectInitialized, OptFilterParam::OrderOptFilter, OrderOptFilter, RelativeCenterFreqOptFilter, sfftM, OptFilterParam::TypeOptFilter, and TypeOptFilter.

void OptFilter::OpticalBandpassFilter ( cplx *  TimeSignal,
cplx *  FreqSignal 
)

Added by Anshul June'03 The Bandwidth of the Bandpass filter is assumed to be equal to its FWHM.

Referenced by TunableFilterOptSignal().

double OptFilter::SantecPoly ( double  x  ) 

References OrderOptFilter.

Referenced by WriteFreqPowerSantecFilter().

void OptFilter::SantecTunableOpticalFilter ( cplx *  TimeSignal,
cplx *  FreqSignal 
)

References dB2Linear(), and log().

Referenced by FilterOptSignal_OLD(), and TunableFilterOptSignal().

void OptFilter::SetFreqFWHM_OptFilter ( double  FreqFWHM_OptFilter2  ) 

References FreqFWHM_OptFilter, LogFile, and LogFileSeparator().

Referenced by ElecSignalStat::ResetOptElecFilterBandwidthsForGaussianStatistics(), and ChiSquareReceiver::SetOptFilterBandwidth().

void OptFilter::SetOpticalData ( cfftw *  fft2,
fftMatrices  sfftM2 
)

References fft, ObjectInitialized, and sfftM.

Referenced by OptDemuxer::ExtractChannel(), OptDemuxer::ExtractChannelCenterFreq(), and OptDemuxer::ExtractSingleChannel().

void OptFilter::SetRelativeCenterFreq ( double  RelativeCenterFreqOptFilter2  ) 

References RelativeCenterFreqOptFilter.

Referenced by OptDemuxer::ExtractChannel(), OptDemuxer::ExtractChannelCenterFreq(), OptDemuxer::ExtractSingleChannel(), OptDemuxer::PrepareToDemuxChannel(), ReceiverSubsystem::ReceiveSignal(), ReceiverSubsystem::ReceiveSignalBackToBack(), and ElecSignalStat::ResetOptElecFiltersForGaussianStatistics().

void OptFilter::SuperGaussianTunableOpticalFilter ( cplx *  TimeSignal,
cplx *  FreqSignal 
)

By Oleg Sinkin. The frequency response function of this filter is H(f) = exp( -1/2*((f-fc)/sigma)^(2n)), where fc is the center frequency, sigma is a width parameter related to FWHM by sigma = 0.5*FWHM/((ln(2))^(1/(2n))) and n is the order of the super Gaussian function. The choice n=1 corresponds to a standard Gaussian

To use, call the constructor OptFilter::OptFilter(string InFileName,typeSimulation TypeSimulation2) and set OptFilter::TypeOptFilter = 1 OptFilter::OrderOptFilter = n

Referenced by TunableFilterOptSignal().

void OptFilter::SwitchOptSignalData ( OptSignal *  oOptSignal2  ) 

References OptSignal::fft, fft, OptSignal::sfftM, and sfftM.

void OptFilter::TunableFilterOptSignal (  ) 

References BANDPASS, BOTH_SANTEC, CIENA_DEMUX, DemuxLoopTunableOpticalFilter(), FABRY_PEROT, FabryPerotFilter(), fftMatrices::fOptSignalX, fftMatrices::fOptSignalY, GaussianTunableOpticalFilter(), NOFILTER, ObjectInitialized, OpticalBandpassFilter(), OrderOptFilter, SANTEC, SantecTunableOpticalFilter(), sfftM, SUPERGAUSS, SuperGaussianTunableOpticalFilter(), fftMatrices::tOptSignalX, fftMatrices::tOptSignalY, TypeOptFilter, TypeSimulation, and VECTOR.

Referenced by OptDemuxer::ExtractChannel(), OptDemuxer::ExtractChannelCenterFreq(), OptDemuxer::ExtractSingleChannel(), and FilterOptSignal().

void OptFilter::WriteFilterImpulseResponse ( string  FileNameImpulseResponseTime,
string  FileNameImpulseResponseFreq 
)

References FilterOptSignal(), OptSignal::GenerateImpulseSignal(), oOptSignal, OptSignal::WriteFileFreqPower(), and OptSignal::WriteFileTimePower().

void OptFilter::WriteFreqPowerBandpassFilter ( string  OutFileName  ) 

by Anshul. writes |H(f)|^2 for a bandpass filter.

References fft, cfftw::freq(), FreqFWHM_OptFilter, cfftw::give_N(), and RelativeCenterFreqOptFilter.

void OptFilter::WriteFreqPowerDemuxLoopFilter ( string  OutFileName  ) 

Added by Paola Griggio for Ciena experiment.

References dB2Linear(), DemuxLoopPoly(), fft, cfftw::freq(), cfftw::give_N(), and log().

void OptFilter::WriteFreqPowerFabryPerotFilter ( string  OutFileName  ) 

by Anshul. writes |H(f)|^2 for a FabryPerot filter.

References fft, cfftw::freq(), FreqFWHM_OptFilter, cfftw::give_N(), jc, pi, sq(), and sqrt().

void OptFilter::WriteFreqPowerGaussianFilter ( string  OutFileName  ) 

References fft, cfftw::freq(), FreqFWHM_OptFilter, cfftw::give_N(), RelativeCenterFreqOptFilter, and sq().

void OptFilter::WriteFreqPowerSantecFilter ( string  OutFileName  ) 

References dB2Linear(), fft, cfftw::freq(), cfftw::give_N(), log(), and SantecPoly().

void OptFilter::WriteFreqPowerSuperGaussianFilter ( string  OutFileName  ) 

By Oleg Sinkin. Outputs the frequency response |H(f)|^2 of a super Gaussian optical filter

References fft, cfftw::freq(), FreqFWHM_OptFilter, cfftw::give_N(), OrderOptFilter, RelativeCenterFreqOptFilter, and sq().

Member Data Documentation

int OptFilter::DebugLevel [private]

Referenced by OptFilter().

bool OptFilter::DoAdditionalFilteringFlag [private]

Referenced by OptFilter().

cfftw* OptFilter::fft [private]

Referenced by FilterOptSignal_OLD(), InitOptFilter(), OptFilter(), SetOpticalData(), SwitchOptSignalData(), WriteFreqPowerBandpassFilter(), WriteFreqPowerDemuxLoopFilter(), WriteFreqPowerFabryPerotFilter(), WriteFreqPowerGaussianFilter(), WriteFreqPowerSantecFilter(), and WriteFreqPowerSuperGaussianFilter().

double OptFilter::FreqFWHM_OptFilter [private]

Referenced by FilterOptSignal_OLD(), GetFreqFWHM_OptFilter(), InitOptFilter(), OptFilter(), SetFreqFWHM_OptFilter(), WriteFreqPowerBandpassFilter(), WriteFreqPowerFabryPerotFilter(), WriteFreqPowerGaussianFilter(), and WriteFreqPowerSuperGaussianFilter().

int OptFilter::ObjectInitialized [private]

Referenced by FilterOptSignal_OLD(), InitOptFilter(), OptFilter(), SetOpticalData(), and TunableFilterOptSignal().

OptSignal* OptFilter::oOptSignal [private]

Referenced by GetPowerEquivalentSpectralWidth(), OptFilter(), and WriteFilterImpulseResponse().

int OptFilter::OrderOptFilter [private]

Referenced by FilterOptSignal_OLD(), GetOrderOptFilter(), InitOptFilter(), OptFilter(), SantecPoly(), TunableFilterOptSignal(), and WriteFreqPowerSuperGaussianFilter().

double OptFilter::RelativeCenterFreqOptFilter [private]

Referenced by GetRelativeCenterFreqOptFilter(), InitOptFilter(), OptFilter(), SetRelativeCenterFreq(), WriteFreqPowerBandpassFilter(), WriteFreqPowerGaussianFilter(), and WriteFreqPowerSuperGaussianFilter().

fftMatrices OptFilter::sfftM [private]

Referenced by FilterOptSignal_OLD(), InitOptFilter(), OptFilter(), SetOpticalData(), SwitchOptSignalData(), and TunableFilterOptSignal().

typeOptFilter OptFilter::TypeOptFilter [private]

Referenced by FilterOptSignal_OLD(), GetTypeOptFilter(), InitOptFilter(), OptFilter(), and TunableFilterOptSignal().

typeSimulation OptFilter::TypeSimulation [private]

Referenced by FilterOptSignal_OLD(), OptFilter(), and TunableFilterOptSignal().

The documentation for this class was generated from the following files:
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