Man Scilab

eqfir Scilab Function

eqfir - minimax approximation of FIR filter

Calling Sequence

[hn]=eqfir(nf,bedge,des,wate)

Parameters

nf : number of output filter points desired
bedge : Mx2 matrix giving a pair of edges for each band
des : M-vector giving desired magnitude for each band
wate : M-vector giving relative weight of error in each band
hn : output of linear-phase FIR filter coefficients

Description

Minimax approximation of multi-band, linear phase, FIR filter

Examples


hn=eqfir(33,[0 .2;.25 .35;.4 .5],[0 1 0],[1 1 1]);
[hm,fr]=frmag(hn,256);
plot(fr,hm),

Author

C. B.