[SciPy-user] FIR filter, calculated with Remez exchange algorithm ?

[Stef Mientki]

Does anyone has experience with  the Remez function ?

I tried to design a simple highpass filter, 24 coefficients:
stopband  40 dB from 0..0.01
transition band from 0.01 .. 0.2
passband 0 dB from 0.2 .. 0.5
(which I think is not a critical design,
after all MatLab does it fluently ;-)

filt_4 = signal.remez (24, (0, 0.01,  0.2,  0.49), (0.01, 1))

but I get some weird impuls responses.

Did I fill in the parameters correctly ?

thanks,
Stef Mientki