Function: welch()

function welch(signal, opts?): Psd;

Defined in: stats/signal.ts:64

Welch's method: average the periodograms of overlapping windowed segments. Trades frequency resolution for a far lower-variance estimate than a single FFT of the whole signal — the standard way to read a noisy spectrum.

Parameters

Parameter	Type
signal	ArrayLike<number>
opts	WelchOptions

Returns

Psd