ex42.m

数字信号分析处理方面的好教材,有DSP的MATLAB源程序.

b=[0.2 0.3 1];
a=[1 0.4 1];
%freqz(b,a,128)
freqz(b,a,128,'whole',100)
%freqz(b,a,[1 10 20 30 40 50 60 70 80 90 100],100)