scipy.signal.slepian

scipy.signal.slepian(M, width, sym=True)[source]

Return a digital Slepian window.

Used to maximize the energy concentration in the main lobe. Also called the digital prolate spheroidal sequence (DPSS).

Parameters :

M : int

Number of points in the output window. If zero or less, an empty array is returned.

width : float

Bandwidth

sym : bool, optional

When True, generates a symmetric window, for use in filter design. When False, generates a periodic window, for use in spectral analysis.

Returns :

w : ndarray

The window, with the maximum value always normalized to 1

Examples

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