Developer Reference

  • 2020
  • 07/15/2020
  • Public Content
Contents

WinKaiser

Multiplies a vector by a Kaiser windowing function.

Syntax

IppStatus ippsWinKaiser_16s(const Ipp16s*
pSrc
, Ipp16s*
pDst
, int
len
, Ipp32f
alpha
);
IppStatus ippsWinKaiser_32f(const Ipp32f*
pSrc
, Ipp32f*
pDst
, int
len
, Ipp32f
alpha
);
IppStatus ippsWinKaiser_64f(const Ipp64f*
pSrc
, Ipp64f*
pDst
, int
len
, Ipp64f
alpha
);
IppStatus ippsWinKaiser_16sc(const Ipp16sc*
pSrc
, Ipp16sc*
pDst
, int
len
, Ipp32f
alpha
);
IppStatus ippsWinKaiser_32fc(const Ipp32fc*
pSrc
, Ipp32fc*
pDst
, int
len
, Ipp32f
alpha
);
IppStatus ippsWinKaiser_64fc(const Ipp64fc*
pSrc
, Ipp64fc*
pDst
, int
len
, Ipp64f
alpha
);
IppStatus ippsWinKaiser_16s_I(Ipp16s*
pSrcDst
, int
len
, Ipp32f
alpha
);
IppStatus ippsWinKaiser_32f_I(Ipp32f*
pSrcDst
, int
len
, Ipp32f
alpha
);
IppStatus ippsWinKaiser_64f_I(Ipp64f*
pSrcDst
, int
len
, Ipp64f
alpha
);
IppStatus ippsWinKaiser_16sc_I(Ipp16sc*
pSrcDst
, int
len
, Ipp32f
alpha
);
IppStatus ippsWinKaiser_32fc_I(Ipp32fc*
pSrcDst
, int
len
, Ipp32f
alpha
);
IppStatus ippsWinKaiser_64fc_I(Ipp64fc*
pSrcDst
, int
len
, Ipp64f
alpha
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
pSrc
Pointer to the source vector.
pDst
Pointer to the destination vector.
pSrcDst
Pointer to the source and destination vector for the in-place operation.
alpha
Adjustable parameter associated with the Kaiser windowing equation.
len
Number of elements in the vector.
Description
This function multiplies the vector
pSrc
by the Kaiser window, and stores the result in
pDst
.
The in-place flavors of
ippsWinKaiser
multiply the vector
pSrcDst
by the Kaiser window and store the result in
pSrcDst
.
ippsWinKaiser
.
The function
ippsWinKaiser
allows the application to specify
alpha
. The function multiplies both real and imaginary parts of the complex vector by the same window. The Kaiser family of windows are defined as follows:
Here
I
0
()
is the modified zero-order Bessel function of the first kind.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when the
pDst
,
pSrc
, or
pSrcDst
pointer is
NULL
.
ippStsSizeErr
Indicates an error when
len
is less than 1.
ippStsHugeWinErr
Indicates an error when the Kaiser window is too big.

Example

The example below shows how to use the function
ippsWinKaiser_32f_I
.
void kaiser(void) { Ipp32f x[8]; IppStatus st; ippsSet_32f(1, x, 8); st = ippsWinKaiser_32f_I( x, 8, 1.0f ); printf_32f("kaiser(half) =", x, 4, ippStsNoErr); }
Output:
kaiser(half) = 0.135534 0.429046 0.755146 0.970290 Matlab* Analog: >> kaiser(8,7/2)'

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804