exa1_43.m

新版Matlab 7辅助信号处理技术与应用

% exa1-43_frequency_reponse_model.m for example 1-43
% frequency reponse model

clear all;
a=[1 1];
b=[1];
w=0:0.1:10;
H=freqs(b,a,w);
mag=abs(H);
mag=20*log10(mag);
phase=angle(H);
phase=phase*180/pi;
figure(1)
plot(w,mag)
figure(2)
plot(w,phase)