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plp_fft_fast_instance_f32_parallel

Instance structure for floating-point FFT. More...

#include <plp_math.h>

Public Attributes

Name
plp_fft_fast_instance_f32 * S
float32_t *restrict pSrc
float32_t *restrict pDst
const uint32_t nPE

Detailed Description

struct plp_fft_fast_instance_f32_parallel;

Instance structure for floating-point FFT.

Parameters:

  • Internal CFFT structure
  • length data length of the real sequence
  • pTwiddleFactorsRFFT pointer to the twiddle factors. These values must be computed using this formula: (W_N^k = e^{-j \frac{\pi}{N} k}), where (N) is the data length and (k) is the index. The user must provide (\frac{N}{2}) values ( (k = 0 .. \frac{N}{2}-1)).
  • pBitReverseLUT pointer to the lookup table used for the bit reversal of output. This table must include (N) elements in the range (0 .. N-1), where each location (k) contains the value (bitreverse(k)).

Public Attributes Documentation

variable S

plp_fft_fast_instance_f32 * S;

variable pSrc

float32_t *__restrict__ pSrc;

variable pDst

float32_t *__restrict__ pDst;

variable nPE

const uint32_t nPE;

Updated on 2023-03-01 at 16:16:31 +0000