ex_6.m

信号与系统分析以matlab实现

%ex_6
clear all;
n1=-2:3;
x1=[0 1 2 1 0 0];
n2=-3:3;
x2=[0 1 1 1 1 1 0];
n3=-2:3;
x3=[0 0 3 2 1 0];
[x_23,n_23]=dconv(x2,x3,n2,n3);
[x_13,n_13]=dconv(x1,x3,n1,n3);
[x_4,n_4]=sigadd(x_23,n_23,-x_13,n_13);
subplot(2,1,1),stem(n_23,x_23)
subplot(2,1,2),stem(n_4,x_4)