Complex vector magnitude
MT, SSE2, Family10h
| FwStatus | fwsMagnitude_32f | ( | const Fw32f * pSrcRe, const Fw32f * pSrcIm, Fw32f * pDst, int len ); | |
| FwStatus | fwsMagnitude_64f | ( | const Fw64f * pSrcRe, const Fw64f * pSrcIm, Fw64f * pDst, int len ); | |
| FwStatus | fwsMagnitude_32fc | ( | const Fw32fc * pSrc, Fw32f * pDst, int len ); | |
| FwStatus | fwsMagnitude_64fc | ( | const Fw64fc * pSrc, Fw64f * pDst, int len ); | |
| FwStatus | fwsMagnitude_16s32f | ( | const Fw16s * pSrcRe, const Fw16s * pSrcIm, Fw32f * pDst, int len ); | |
| FwStatus | fwsMagnitude_16sc32f | ( | const Fw16sc * pSrc, Fw32f * pDst, int len ); | |
| FwStatus | fwsMagnitude_16s_Sfs | ( | const Fw16s * pSrcRe, const Fw16s * pSrcIm, Fw16s * pDst, int len, int scaleFactor ); | |
| FwStatus | fwsMagnitude_16sc_Sfs | ( | const Fw16sc * pSrc, Fw16s * pDst, int len, int scaleFactor ); | |
| FwStatus | fwsMagnitude_32sc_Sfs | ( | const Fw32sc * pSrc, Fw32s * pDst, int len, int scaleFactor ); |
| len | Specifies the number of elements in a buffer. | |
| pDst | Pointer to a destination buffer. | |
| pSrc | Pointer to a source buffer. | |
| pSrcIm | Pointer to a source buffer that contains the imaginary component values of an input signal. | |
| pSrcRe | Pointer to a source buffer that contains the real component values of an input signal. | |
| scaleFactor | Specifies an integer scaling factor for the Sfs operation. The returned result is multiplied by 2^(-scaleFactor). |
These functions step through elements of a complex vector, calculate the magnitude of each element, and write the result to a destination buffer.
The following evaluation formula is used.
Magnitude = sqrt( (re * re) + (im * im) )
There are versions of the function that operate on one source buffer containing a complex vector and versions that operate on two source buffers containing real and imaginary component values.
There are single-vector 16-bit signed complex and single-vector 32-bit signed complex versions that perform integer scaling before writing the results.