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- From: stote@tomcat.den.mmc.com (M. Stote)
- Subject: Re: SVD
- Message-ID: <1993Jan8.200719.1415@den.mmc.com>
- Sender: stote@tomcat (M. Stote)
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- 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
-
- 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
-