ex_9.m

信号与系统分析以matlab实现

%例9
clear all;
p=0.01;
k1=-1:p:1;
f1=2*ones(1,length(k1));
k2=-2:p:2;
f2=ones(1,length(k2));
f=conv(f1,f2);
f=f*p;
k3=length(f1)+length(f2)-2;
k0=k1(1)+k2(1);
k=k0:p:(k3*p-abs(k0))
subplot(3,1,1),plot(k1,f1),axis([-1.1,1.1,0,4]),grid on
subplot(3,1,2),plot(k2,f2),axis([-2.2,2.2,0,2]),grid on
subplot(3,1,3),plot(k,f),grid on