11.10.2. astroML.fourier.IFT_continuous¶

astroML.fourier.
IFT_continuous
(f, H, axis=1, method=1)[source]¶ Approximate a continuous 1D Inverse Fourier Transform with sampled data.
This function uses the Fast Fourier Transform to approximate the continuous fourier transform of a sampled function, using the convention
It returns t and h, which approximate h(t).
 Parameters
 farray_like
regularly sampled array of times t is assumed to be regularly spaced, i.e. f = f0 + Df * np.arange(N)
 Harray_like
real or complex signal at each time
 axisint
axis along which to perform fourier transform. This axis must be the same length as t.
 Returns
 fndarray
frequencies of result. Units are the same as 1/t
 Hndarray
Fourier coefficients at each frequency.