shift_function.m

很多matlab的源代码

n=-2:10;
x=[1:7,6:-1:1];
[x11,n11]=sigshift(x,n,5);
[x12,n12]=sigshift(x,n,-4);
[x1,n1]=sigadd(2*x11,n11,-3*x12,n12);
subplot(2,1,1);
stem(n1,x1);
xlabel('n');ylabel('x1(n)');