Article View: sci.engr.control
Article #202Re: SVD
From: M. Stote
Date: Fri, 08 Jan 1993 20:07
Date: Fri, 08 Jan 1993 20:07
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1695 bytes
In article <C0HM8v.8vz@ccsun.strath.ac.uk>, cnar08@ccsun.strath.ac.uk ("M.Akbar", Electrical Engineering) writes:
|> In article 1ifkptINN9r5@bode.usc.edu, wang@bode.usc.edu (Weizheng Wang) writes:
|> > In article <1992Dec28.202902.29682@noose.ecn.purdue.edu> kavuri@lips2.ecn.purdue.edu (Surya N Kavuri ) writes:
|> > >
|> > > If I have a transfer function in the Laplace Domain
|> > > how can I compute SVD ? Are there any algorithms for this ?
|> > >
|> > > Thanks
|> > >
|> > > Surya Kavuri
|> > >
|>
|> If you have a simple transfer function in Laplace Domain you
|> may need to write a simple program in MATLAB to calculate the
|> SV's using SVD in matlab.
I believe that if you have a transfer function (not TF matrix), then
the singular value = gain. Of course if you want the decomposed form
of the system then easiest is to transfor transfer fcn into state-space
and use state-space SVD.
|>
|> What you have to do is define the frequency vector say w
|> and s=jw and calculate the SV's for each point.
|>
|>
|> If you have the ABCD matrices then just use sigma in the
|> control toolbox.
|>
|> Mahmood Akbar
--
Mike Stoughton
stote@den.mmc.com
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Newsgroups: sci.engr.control Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!usc!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!csn!news.den.mmc.com!stote From: stote@tomcat.den.mmc.com (M. Stote) Subject: Re: SVD Message-ID: <1993Jan8.200719.1415@den.mmc.com> Sender: stote@tomcat (M. Stote) Nntp-Posting-Host: tomcat.den.mmc.com Organization: Martin Marietta Astronautics Group References: <1ifkptINN9r5@bode.usc.edu> <C0HM8v.8vz@ccsun.strath.ac.uk> Date: Fri, 8 Jan 1993 20:07:19 GMT Lines: 34