Reg:Design of Butterworth approximated filter using FIR filter design technique
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From: Rick Lyons on 6 Sep 2009 10:14 On Sat, 5 Sep 2009 10:32:21 -0700 (PDT), Dale Dalrymple <dbd(a)ieee.org> wrote: >On Sep 5, 9:56 am, SRS <sitaram...(a)gmail.com> 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 > >A recent article: > >Butterworth Window for Power Spectral Density Estimation Tae Hyun >Yoon, and Eon Kyeong Joo, ETRI Journal, vol.31, no.3, June 2009, pp. >292-297. > >available from: > >http://etrij.etri.re.kr/Cyber/servlet/BrowseAbstract?vol=31&num=3&pg=292 > >gives an approximate Butterworth window approach that can be applied >to FIR filters through the window based FIR design approach. > >Dale B. Dalrymple Hi Dale, That's an interesting article. Thanks for pointing it out to us. [-Rick-] |