Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!samsung!munnari.oz.au!metro!tplrd!tonym From: tonym@tplrd.tpl.oz.au (Tony Murphy) Newsgroups: comp.dsp Subject: Re: Best z-trans. for CONTROL SYSTEMS? Message-ID: <1991Apr24.080740.12751@tplrd.tpl.oz.au> Date: 24 Apr 91 08:07:40 GMT References: <1991Apr18.160222.21961@uservx.afwl.af.mil> <9360025@hplsla.HP.COM> Organization: Telectronics Pacing Systems Lines: 10 In article <9360025@hplsla.HP.COM> jamesv@hplsla.HP.COM (James Vasil) writes: >The bilinear-z transform (or the related, pre-warped bilinear) is >generally considered a good tranform to use when you are interested >in preserving the frequency domain charicteristics of your analog >filter.... But for control applications the impulse response may be more important, so the impulse invariant transformation should be considered. Tony