exa122.m

来自「自己整理的信号与系统中的MATLAB应用： 离散系统模型及其MATLAB实现 」· M 代码 · 共 21 行

%exa122_add.m for example 1-22
%signal add信号相加
clear all;
n1=0:3;
l1=length(n1);
x1=[2 0.5 0.9 1];
figure(1)
stem(n1,x1)
axis([-1 8 0 2.1])
n2=0:7;
x2=[0 0.1 0.2 0.3 0.4 0.5 0.6 0.7];
figure(2)
stem(n2,x2)
axis([-1 8 0 0.8])
n=0:7;
x1=[x1 zeros(1,8-length(n1))];
x2=[zeros(1,8-length(n2)) x2];
x=x1+x2;
figure(3)
stem(n,x)
axis([-1 8 0 2.1])