eegprep.firwsord

eegprep.firwsord(wintype, fs, df, dev=None)

Estimate windowed sinc FIR filter order depending on window type and requested transition band width.

Parameters

wintypestr

Window type. One of ‘rectangular’, ‘hann’, ‘hamming’, ‘blackman’, or ‘kaiser’.

fsfloat

Sampling frequency.

dffloat

Requested transition band width.

devfloat, optional

Maximum passband deviation/ripple (Kaiser window only).

Returns

mint

Estimated filter order.

devfloat

Maximum passband deviation/ripple.

Notes

Based on a MATLAB implementation by Andreas Widmann, University of Leipzig, 2005.

Parameters:

• wintype (str)

• fs (float)

• df (float)

• dev (float | None)

Return type:

Tuple[int, float]