RegisterSpectral function, Fourier transform, inverse Fourier transformSpectral function describes frequency dependency of complex amplitudes of spectral components of a signal. Spectral function S( ω) can be computed from a known time course of a signal s(t) using Fourier transform: | . | |
On the contrary, time course of a signal can be computed from a known spectral function using inverse Fourier transform | . | |
In the above-given relations, S(ω) denotes a spectral function, U(t) is a time course of a signal, ω is angular frequency and t denotes time. Back
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