dsp-0.2.1: Haskell Digital Signal Processing Source code Contents Index

Numeric.Transform.Fourier.CT Portability portable Stability experimental Maintainer m.p.donadio@ieee.org

Description

Cooley-Tukey algorithm for computing the FFT

Synopsis

fft_ct1 :: (Ix a, Integral a, RealFloat b) => Array a (Complex b) -> a -> a -> Array a (Complex b) -> Array a (Complex b) -> Array a (Complex b) fft_ct2 :: (Ix a, Integral a, RealFloat b) => Array a (Complex b) -> a -> a -> Array a (Complex b) -> Array a (Complex b) -> Array a (Complex b)

Documentation

fft_ct1 Source

:: (Ix a, Integral a, RealFloat b) => Array a (Complex b) x[n] -> a nrows -> a ncols -> Array a (Complex b) -> Array a (Complex b) FFT function -> Array a (Complex b) X[k] Cooley-Tukey algorithm doing row FFT's then column FFT's

fft_ct2 Source

:: (Ix a, Integral a, RealFloat b) => Array a (Complex b) x[n] -> a nrows -> a ncols -> Array a (Complex b) -> Array a (Complex b) fft function -> Array a (Complex b) X[k] Cooley-Tukey algorithm doing column FFT's then row FFT's

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