#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <iuf.h>
#include <iufFilterPrivate.h>
#include <iufIqFileStructure.h>
#include <iufDemodulationPrivate.h>
#include <iufTGCPrivate.h>

Data Structures
struct	IufDemodulation

Functions
iudm_t	iufDemodulationCreate (IufDemodulationMethod method, float sampleFrequency, float centerFrequency, int numSamplesPerLine, int numTGCentries, int filterKernelSize)

int	iufDemodulationDelete (iudm_t demodulation)
	Deletes the IufDemodulation and also the TGC function that it might contain. More...

int	iufDemodulationCompare (iudm_t reference, iudm_t actual)
	Compare two demodulation objects with each other, including their TGC function. More...

iutgc_t	iufDemodulationGetTGC (iudm_t demodulation)
	Gets the TGC object of the demodulation. More...

iuff_t	iufDemodulationGetPreFilter (iudm_t demodulation)
	Gets the fir filter object of the demodulation. More...

float	iufDemodulationGetCenterFrequency (iudm_t demodulation)
	Returns the centerFrequency (after demodulation) More...

float	iufDemodulationGetSampleFrequency (iudm_t demodulation)
	Returns the sampleFrequency setting. More...

int	iufDemodulationGetNumSamplesPerLine (iudm_t demodulation)
	Returns the number of samples per line. More...

int	iufDemodulationGetNumTGCentries (iudm_t demodulation)
	Gets the number of [time,gain] paira that the TGC has. More...

int	iufDemodulationGetPreFilterKernelSize (iudm_t demodulation)
	Gets the number of filter coefficients of the preFilter. More...

int	iufDemodulationSetTGC (iudm_t demodulation, iutgc_t tgc)
	set the TGC of IufDemodulation More...

int	iufDemodulationSetPreFilter (iudm_t demodulation, iuff_t preFilter)
	set the TGC of IufDemodulation More...

int	iufDemodulationSave (iudm_t demodulation, hid_t handle)

iudm_t	iufDemodulationLoad (hid_t handle)

Data Structure Documentation

◆ IufDemodulation

struct IufDemodulation

Data Fields
float	centerFrequency	The center frequency that was used
int	downSampleFactor	The reduction factor between original sampling and the data rate (i.e. sampleFrequency)
IufDemodulationMethod	method	How the downsampling has been performed
int	numSamplesPerLine	length of an acquisition line
iuff_t	preFilter	The filter that has been used before downSampling was applied
float	sampleFrequency	The sampling frequency that was used
iutgc_t	TGC	TimeGainControl points (time,gain)

Function Documentation

◆ iufDemodulationCompare()

int iufDemodulationCompare	(	iudm_t	reference,
		iudm_t	actual
	)

Compare two demodulation objects with each other, including their TGC function.

Returns: Returns IUF_TRUE when the settings are equal and IUF_FALSE otherwise

Parameters

reference	the receive settings to compare to
actual	the receive settings to compare with

◆ iufDemodulationCreate()

iudm_t iufDemodulationCreate	(	IufDemodulationMethod	method,
		float	sampleFrequency,
		float	centerFrequency,
		int	numSamplesPerLine,
		int	numTGCentries,
		int	filterKernelSize
	)

Parameters

method	The downsampling method
sampleFrequency	The sampling frequency in Hz
centerFrequency	The center frequency in Hz after demodulation
numSamplesPerLine	The number of samples per acquired line
numTGCentries	The size of the TGC function
filterKernelSize	The size of the preFilter

◆ iufDemodulationDelete()

int iufDemodulationDelete ( iudm_t demodulation )

Deletes the IufDemodulation and also the TGC function that it might contain.

Returns: Returns IUF_E_OK when successful or IUF_ERR_VALUE otherwise

Parameters

demodulation The receive settings of interest.

◆ iufDemodulationGetCenterFrequency()

float iufDemodulationGetCenterFrequency ( iudm_t demodulation )

Returns the centerFrequency (after demodulation)

Returns: The center frequency after demodulation in Hz

Parameters