ihilbert — SciPy v1.15.3 Manual (original) (raw)

scipy.fftpack.

scipy.fftpack.ihilbert(x, _cache=<_thread._local object>)[source]#

Return inverse Hilbert transform of a periodic sequence x.

If x_j and y_j are Fourier coefficients of periodic functions x and y, respectively, then:

y_j = -sqrt(-1)*sign(j) * x_j y_0 = 0