class::dsp::FftRealQ31

class dsp::FftRealQ31
  : public dsp::Fft< arm_rfft_instance_q31, SignalComplexQ31 >

The Real FFT object for q1.31.

RealFftQ31 fft(32);
SignalComplexQ31 source(32);
SignalComplexQ31 destination;
destination = source.transform(fft);

//subsequent calls can avoid dyncamic memory allocation
source.transform(destination, fft);

//Now the inverse
destination.transform(source, fft, true);

Summary

FftRealQ31(

u32 n_samples
)

u32 samples() const

Members

FftRealQ31(

u32 n_samples
)

Contructs an object.

Parameters

  • n_samples The number of samples to compute on each transform

The n_samples value must be a power of 2 between 32 and 2048.


u32 samples() const

Returns the number of samples computed on each transform.


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