Reg:Design of Butterworth approximated filter using FIR filterdesign technique
in [DSP]
|
Prev: Goertzel Optimizing
Next: Reg:Design of Butterworth approximated filter using FIR filter design technique
From: Eric Jacobsen on 5 Sep 2009 18:52 On 9/5/2009 9:56 AM, SRS wrote: > I need to design a butterworth approximated low pass, high pass, band > pass, band stop filter characteristics.This i did using DFT technique > which is a very heavy algorithm.So My question is how to design the > FIR for my requirement.So can anybody help in how to proceed... > Thank you :-) > > With Regards, > SRS If you have access to a Parks-McClellan (or Remez exchange) routine with a 'Hilbert' or 'quadrature' switch, you can use this method for the Butterworth low pass: http://www.dspguru.com/comp.dsp/tricks/dsn/nlp_fir.htm -- Eric Jacobsen Minister of Algorithms Abineau Communications http://www.abineau.com |