#include <ocsOptDemuxer.hh>

Public Member Functions
	OptDemuxer (OptSignal WDM_Signal2, OptFilter TunableFilter2)
	~OptDemuxer ()
	OptDemuxer (OptSignal WDM_Signal2, OptFilter TunableFilter2, OptSignal *SingleChannelSignal2)
OptSignal &	ExtractChannel (int ChannelArrayIndex)
void	DemuxChannel (int ChannelArrayIndex)
void	PrepareToDemuxChannel (int ChannelArrayIndex)
void	ExtractSingleChannel (int ChannelArrayIndex)
	Ivan's code. Very similar to DemuxChannel.
OptSignal &	ExtractChannelCenterFreq (double CenterFreqOptFilter, BitString *SCBitString, bool DoFilterFlag)
bool	GetDoAdditionalFiltering (void)
Private Attributes
OptSignal *	WDM_Signal
OptFilter *	TunableFilter
OptSignal *	SingleChannelSignal
int	ChannelArrayIndex
bool	DoAdditionalFilteringFlag

Constructor & Destructor Documentation

OptDemuxer::OptDemuxer	(	OptSignal *	WDM_Signal2,
		OptFilter *	TunableFilter2
	)

References DoAdditionalFilteringFlag, OptFilter::GetDoAdditionalFiltering(), SingleChannelSignal, TunableFilter, and WDM_Signal.

OptDemuxer::~OptDemuxer ( )

Referenced by ChiSquareReceiver::~ChiSquareReceiver(), GaussianReceiver::~GaussianReceiver(), ReceiverSemiAnalytical::~ReceiverSemiAnalytical(), and ReceiverSubsystem::~ReceiverSubsystem().

OptDemuxer::OptDemuxer	(	OptSignal *	WDM_Signal2,
		OptFilter *	TunableFilter2,
		OptSignal *	SingleChannelSignal2
	)

References DoAdditionalFilteringFlag, OptFilter::GetDoAdditionalFiltering(), SingleChannelSignal, TunableFilter, and WDM_Signal.

Member Function Documentation

void OptDemuxer::DemuxChannel ( int ChannelArrayIndex )

Use this method to demux rather than using OptSignal& ExtractChannel(int ChannelArrayIndex). JZApril 2003 Based on void ExtractSingleChannel(int ChannelArrayIndex);

This method calls OptDemuxer::PrepareToDemuxChannel and then optically filters the signal.

To use the method make the following calls:

SingleChannelSignal = new OptSignal(*WDMSignal);

TunableOptFilter = new OptFilter(InDir + "TunableOptFilter.in", SingleChannelSignal);

oOptDemuxer = new OptDemuxer(WDMSignal,TunableOptFilter,SingleChannelSignal);

oOptDemuxer->DemuxChannel(ChannelArrayIndex);

The last call can be made multiple times throughout the code to demux the current WDMSignal, and can have different ChannelArrayIndexes for the different calls.

The method is more robust than calling OptSignal& OptDemuxer::ExtractChannel(int ChannelArrayIndex)

It is very similar to

void OptDemuxer::ExtractSingleChannel(int ChannelArrayIndex)

The main difference is that in the semianalytical receiver you want to call

void OptDemuxer::PrepareToDemuxChannel(ChannelArrayIndex)

separately from calling void OptFilter::FilterOptSignal(void)

JZ April 2003.

References OptFilter::FilterOptSignal(), PrepareToDemuxChannel(), and TunableFilter.

Referenced by ChiSquareReceiver::ReceiveNoiseFreeSignalAndRecoverClock(), ReceiverSemiAnalytical::ReceiveSignalBackToBackMonteCarlo(), GaussianReceiver::ReceiveSignalDGD_NoisePartiallyPolarized(), ReceiverSemiAnalytical::ReceiveSignalMonteCarlo(), ReceiverSemiAnalytical::ReceiveSignalSemiAnalytical(), GaussianReceiver::ReceiveSignalUnpolarizedNoise(), and GaussianReceiver::RecoverClockAndSetTimeSlices().

OptSignal & OptDemuxer::ExtractChannel ( int ChannelArrayIndex )

OptSignal & OptDemuxer::ExtractChannelCenterFreq	(	double	CenterFreqOptFilter,
		BitString *	SCBitString,
		bool	DoFilterFlag
	)

Written by JZ (Aug 2001) to demux about a given freq rather than a ch number. The BitString for the demuxed signal is given by SCBitString

References OptSignal::fft, OptSignal::GetCenterFreq(), OptSignal::GetNumChannels(), OptSignal::oBitString, BitString::ReduceToSingleChannelBitString(), OptSignal::SetFrequency(), OptSignal::SetNumberChannelsForDemuxer(), OptSignal::SetNumChannels(), OptFilter::SetOpticalData(), OptFilter::SetRelativeCenterFreq(), OptSignal::sfftM, SingleChannelSignal, TunableFilter, OptFilter::TunableFilterOptSignal(), and WDM_Signal.

Referenced by ReceiverSubsystem::ReceiveSignalBackToBackCenterFreq(), and ReceiverSubsystem::ReceiveSignalCenterFreq().

void OptDemuxer::ExtractSingleChannel ( int ChannelArrayIndex )

Ivan's code. Very similar to DemuxChannel.

References OptSignal::fft, OptSignal::GetCenterFreq(), OptSignal::GetFrequency(), OptSignal::GetNumChannels(), OptSignal::ReduceToSingleChannel(), OptSignal::SetNumChannels(), OptFilter::SetOpticalData(), OptFilter::SetRelativeCenterFreq(), OptSignal::sfftM, SingleChannelSignal, TunableFilter, OptFilter::TunableFilterOptSignal(), and WDM_Signal.

Referenced by ReceiverSubsystem::DemultiplexSingleChannnel().

bool OptDemuxer::GetDoAdditionalFiltering ( void ) [inline]

Referenced by ReceiverSubsystem::ReceiveSignal(), and ReceiverSubsystem::ReceiveSignalBackToBack().

void OptDemuxer::PrepareToDemuxChannel ( int ChannelArrayIndex )

Does all of DemuxChannel expcept the actual filtering Used in ReceiverSemiAnalytical. JZApril 2003

This method sets the number of channels of the SingleChannelSignal to 1, reduces the WDM BitString to a SingleChannel BitString, sets the carrier frequency of the only channel in the SingleChannel signal and sets the center frequency of the optical filter. It does not do the actual filtering since we need to do that in the semianalytical receiver

References OptSignal::GetCenterFreq(), OptSignal::GetFrequency(), OptSignal::GetNumChannels(), OptSignal::oBitString, BitString::ReduceToSingleChannelBitString(), OptSignal::SetFrequency(), OptSignal::SetNumberChannelsForDemuxer(), OptSignal::SetNumChannels(), OptFilter::SetRelativeCenterFreq(), SingleChannelSignal, TunableFilter, and WDM_Signal.