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Questions related to implementation of various algorithms under software environments and programming languages.

7 votes
2 answers
1k views

How do I apply a Chebishev filter?

I read a paper about a brain-computer interface. In this paper the authors reported "each signal has been filtered with an 8-order band-pass Chebishev Type I filter which cut-off frequencies are 0.1 a …
alfa's user avatar
  • 175
5 votes
2 answers
4k views

How can I break a filter down into second order sections?

This is a follow-up question of How do I apply a Chebishev filter? I designed a filter in Scipy: import scipy.signal as signal fs = 240 signal.cheby1(8, 0.05, [0.1/(fs/2), 10.0/(fs/2)],btype='band', …
alfa's user avatar
  • 175