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iirlp
Lp IIR filter optimization
Calling Sequence
[cost,grad,ind]=iirlp(x,ind,p,[flag],lambda,omega,ad,wa,td,wt)
Arguments
- 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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