plp_fft_fast_instance_f32

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

#include <plp_math.h>

Public Attributes

struct plp_fft_fast_instance_f32;

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)).

plp_cfft_instance_f32 * Sint;

uint32_t FFTLengthRFFT;

const float32_t * pTwiddleFactorsRFFT;

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