ex051200.m

matlab写的数字信号处理源代码,里面包括最基本的fft计算

% Chapter 05: Example 05.12: Circular shift example
%
subplot(1,1,1)
% a) plot x((n-6))15
n = 0:10; x = 10*(0.8) .^ n;
y = cirshftt(x,6,15); 
n = 0:14; x = [x, zeros(1,4)];
subplot(2,1,1); stem(n,x); title('Original sequence')
xlabel('n'); ylabel('x(n)'); axis([-1,15,-1,11])
subplot(2,1,2); stem(n,y); 
title('Circularly shifted sequence, N=15')
xlabel('n'); ylabel('x((n-6) mod 15)'); 
axis([-1,15,-1,11])
pause; print -deps2 me0512.eps