GETSampleAnalysis.hh File Reference

#include "GETChannel.hh"
#include "GETFilterShift.hh"

Go to the source code of this file.

Functions
Constant fraction discriminator timing
double	GETTimingCFD (GETSample &sample, double frac, double delay)
GETSample *	GETCreateCFDSample (GETSample &sample, double frac, double delay)
GETSample *	GETCreateCFDDelayedSample (GETSample &sample, double frac, double delay)
double	GETTimingCFD (GETSample &sample, GETFilterShift &filter)
GETSample *	GETCreateCFDSample (GETSample &sample, GETFilterShift &filter)
GETSample *	GETCreateCFDDelayedSample (GETSample &sample, GETFilterShift &filter)
GETFilterShift *	GETCreateCFDFilter (GETSample &sample, double frac, double delay)
double	GETZeroCrossing (GETSample &sample)

Detailed Description

Include file for samples analysis functions.

Function Documentation

GETSample* GETCreateCFDDelayedSample	(	GETSample &	sample,
		double	frac,
		double	delay
	)

Function that create the delayed and scaled sample from argument sample. Function used in the CFD timing analysis.

Parameters

sample	input sample (to be analysed)
frac	constant fraction value
delay	CFD delay (signal rise time)

References GETCreateCFDDelayedSample(), and GETCreateCFDFilter().

Referenced by GETCreateCFDDelayedSample(), and GETCreateCFDSample().

GETSample* GETCreateCFDDelayedSample	(	GETSample &	sample,
		GETFilterShift &	filter
	)

Function that create the delayed and scaled sample from argument sample. Function used in the CFD timing analysis.

Parameters

sample	input sample (to be analysed)
filter	filter for shift and scale of the input sample

References GETFilter::GetFilter().

GETFilterShift* GETCreateCFDFilter	(	GETSample &	sample,
		double	frac,
		double	delay
	)

Create the filter for the transformation of the signal in the CFD algorithm. The input sample is given only for filter initialisation.

Parameters

sample	input sample
frac	constant fraction value
delay	CFD delay (signal rise time)

References GETProcess::GetDimension(), and GETFilter::Scale().

Referenced by GETCreateCFDDelayedSample(), and GETCreateCFDSample().

GETSample* GETCreateCFDSample	(	GETSample &	sample,
		double	frac,
		double	delay
	)

Function that create the differential sample from argument sample. Function used in the CFD timing analysis.

Parameters

sample	input sample (to be analysed)
frac	constant fraction value
delay	CFD delay (signal rise time)

References GETCreateCFDFilter(), and GETCreateCFDSample().

Referenced by GETCreateCFDSample(), and GETTimingCFD().

GETSample* GETCreateCFDSample	(	GETSample &	sample,
		GETFilterShift &	filter
	)

Function that create the differential sample from argument sample. Function used in the CFD timing analysis.

Parameters

sample	input sample (to be analysed)
filter	filter for shift and scale of the input sample

References GETCreateCFDDelayedSample().

double GETTimingCFD	(	GETSample &	sample,
		double	frac,
		double	delay
	)

Compute the signal timing from a Constant Fraction Discriminator (CFD) analysis. The sample is supposed to have a peak... When the zero-crossing is found, a linear interpolation is performed. If there is no zero crossing, the function returns a value that is lower than the sample start time.

Parameters

sample	sample to analyse
frac	constant fraction value
delay	CFD delay (signal rise time)

References GETCreateCFDSample(), and GETZeroCrossing().

Referenced by GETSystemAnalyser::CalcChannelAmplitude().

double GETTimingCFD	(	GETSample &	sample,
		GETFilterShift &	filter
	)

Compute the signal timing from a Constant Fraction Discriminator (CFD) analysis. The sample is supposed to have a peak... When the zero-crossing is found, a linear interpolation is performed. If there is no zero crossing, the function returns a value that is lower than the sample start time.

Parameters

sample	sample to analyse
filter	filter for shift and scale of the input sample

References GETCreateCFDSample(), and GETZeroCrossing().

double GETZeroCrossing

(

GETSample &

sample

)

Find the time for zero crossing between the minimum and maximum values of the input sample. If there is no zero crossing, the function returns a value that is lower than the sample start time.

Parameters

sample

input sample

Referenced by GETTimingCFD().