Re: laplace tranform convert to code

Started by Tim Wescott July 24, 2006
Jerry Avins wrote:
> Tim Wescott wrote: > > ... > >> Check his original URL: The author has a clever way of building the >> prewarping into the bilinear transform. Dunno if I'd want to make a >> habit of using it, but it's cute. > > > If w0 is half way between the edges of a bandpass filter in the s > domain, it won't be after bilinear transformation. The simplest way I > know is too specify the band edges separately, not band center and > bandwidth. How does the prewarped transform handle that?o > > Jerry
Dunno -- I've never trusted it enough to try. I always make my notch filters by direct design in the z domain. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Posting from Google? See http://cfaj.freeshell.org/google/ "Applied Control Theory for Embedded Systems" came out in April. See details at http://www.wescottdesign.com/actfes/actfes.html