Name
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),