scipy.signal.kaiserord

scipy.signal.kaiserord(ripple, width)

Design a Kaiser window to limit ripple and width of transition region.

Parameters:

ripple : float

Positive number specifying maximum ripple in passband (dB) and minimum ripple in stopband.

width : float

Width of transition region (normalized so that 1 corresponds to pi radians / sample).

Returns:

numtaps : int

The length of the kaiser window.

beta : float

The beta parameter for the kaiser window.

See also

kaiser_beta, kaiser_atten

Notes

There are several ways to obtain the Kaiser window:

• signal.kaiser(numtaps, beta, sym=True)
• signal.get_window(beta, numtaps)
• signal.get_window(('kaiser', beta), numtaps)

The empirical equations discovered by Kaiser are used.

References

Oppenheim, Schafer, “Discrete-Time Signal Processing”, p.475-476.