scipy.signal.
kaiser_beta#
- scipy.signal.kaiser_beta(a)[source]#
- Compute the Kaiser parameter beta, given the attenuation a. - Parameters:
- afloat
- The desired attenuation in the stopband and maximum ripple in the passband, in dB. This should be a positive number. 
 
- Returns:
- betafloat
- The beta parameter to be used in the formula for a Kaiser window. 
 
 - References - Oppenheim, Schafer, “Discrete-Time Signal Processing”, p.475-476. - Examples - Suppose we want to design a lowpass filter, with 65 dB attenuation in the stop band. The Kaiser window parameter to be used in the window method is computed by - kaiser_beta(65):- >>> from scipy.signal import kaiser_beta >>> kaiser_beta(65) 6.20426