Eli Hughes / CMSIS_DSP_401

Dependents:   MPU9150_Example fir_f32 fir_f32 MPU9150_nucleo_noni2cdev ... more

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Transform Functions

Transform Functions

Modules

 Radix-8 Complex FFT Functions
 DCT Type IV Functions
 

Representation of signals by minimum number of values is important for storage and transmission.


 Complex FFT Tables
 ComplexFFT
 RealFFT

Functions

void arm_split_rfft_f32 (float32_t *pSrc, uint32_t fftLen, float32_t *pATable, float32_t *pBTable, float32_t *pDst, uint32_t modifier)
 end of RealFFT group

Function Documentation

void arm_split_rfft_f32 ( float32_t *  pSrc,
uint32_t  fftLen,
float32_t *  pATable,
float32_t *  pBTable,
float32_t *  pDst,
uint32_t  modifier 
)

end of RealFFT group

Core Real FFT process

Parameters:
[in]*pSrcpoints to the input buffer.
[in]fftLenlength of FFT.
[in]*pATablepoints to the twiddle Coef A buffer.
[in]*pBTablepoints to the twiddle Coef B buffer.
[out]*pDstpoints to the output buffer.
[in]modifiertwiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.
Returns:
none.

Definition at line 168 of file arm_rfft_f32.c.