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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2002-03-21 16:57:43 UTC
  • Revision ID: james.westby@ubuntu.com-20020321165743-e9mv12c1tb1plztg
Tags: upstream-2.6
Import upstream version 2.6

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man/signal/iirgroup.cat
 
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iirgroup          Scilab Group          Scilab Function            iirgroup
 
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NAME
 
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   iirgroup - group delay Lp IIR filter optimization
 
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CALLING SEQUENCE
 
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 [lt,grad]=iirgroup(p,r,theta,omega,wt,td)
 
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 [cout,grad,ind]=iirlp(x,ind,p,[flag],lambda,omega,ad,wa,td,wt)
 
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PARAMETERS
 
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 r          : vector of the module of the poles and the zeros of the
 
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            filters
 
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 theta      : vector of the argument of the poles and the zeros of the
 
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            filters
 
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 omega      : frequencies where the filter specifications are given
 
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 wt         : weighting function for and the group delay
 
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 td         : desired group delay
 
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 lt, grad   : criterium and gradient values
 
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DESCRIPTION
 
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   optimization of IIR filters for the Lp criterium for the the group delay.
 
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  (Rabiner & Gold pp270-273).
 
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