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iirlp

Lp IIR filter optimization

Syntax

[cost,grad,ind]=iirlp(x,ind,p,[flag],lambda,omega,ad,wa,td,wt)

Arguments

p

Lp criterion

x

1X2 vector of the module and argument of the poles and the zeros of the filters

flag

string : 'a' for amplitude, 'gd' for group delay; default case for amplitude and group delay.

omega

frequencies where the filter specifications are given

wa,wt

weighting functions for the amplitude and the group delay

lambda

weighting (with 1-lambda) of the costs ('a' and 'gd' for getting the global cost.

ad, td

desired amplitude and group delay

cost, grad

criterium and gradient values

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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Last updated:
Mon Jun 17 17:55:06 CEST 2024