DemodulateFM

Converts frequency modulated signal into the initial demodulated form.

Syntax

IppStatus ippsDemodulateFM_CToR_16s(const Ipp16s* pSrcRe, const Ipp16s* pSrcIm, Ipp16s* pDst, int len, Ipp16sc* pDlyPoint);

Parameters

pSrcRe	Pointer to the source vector with real parts of complex elements.
pSrcIm	Pointer to the source vector with imaginary parts of complex elements.
pDst	Pointer to the destination vector.
len	Number of elements in the vector.
pDlyPoint	Pointer to the value required for operation.

Description

The function ippsDemodulateFM_CToR is declared in the ipps.h file. This function converts the frequency modulated signal to the initial demodulated form. The modulated signal is presented as a complex vector, pSrcRe and pSrcIm. The demodulated signal is presented as the real vector pDst.

On input the pointer pDlyPoint points to the value that corresponds to the demodulated value of the element preceding the first element in the source vector. When operation is completed the pointer points to the demodulated value of the last element.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error when the one of the specified pointer is NULL.
ippStsSizeErr	Indicates an error when len is less than or equal to 0.