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.TH iirlp 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
iirlp - Lp IIR filter optimization
.SH CALLING SEQUENCE
.nf
[cost,grad,ind]=iirlp(x,ind,p,[flag],lambda,omega,ad,wa,td,wt)
.fi
.SH PARAMETERS
.TP 10
x
: 1X2 vector of the module and argument of the poles and the zeros of the filters
.TP 10
flag
: string : \fV'a'\fR for amplitude, 'gd' for group delay; default case for
amplitude and group delay.
.TP 10
omega
: frequencies where the filter specifications are given
.TP 15
wa,wt
: weighting functions for the amplitude and the group delay
.TP 15
lambda
: weighting (with \fV1-lambda\fR) of the costs (\fV'a'\fR and \fV'gd'\fR for
getting the global cost.
.TP 15
ad, td
: desired amplitude and group delay
.TP 15
cost, grad
: criterium and gradient values
.SH DESCRIPTION
optimization of IIR filters for the Lp criterium for the
amplitude and/or the group delay. (Rabiner & Gold pp270-273).
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