ass01_1_14.m

用matlab编写的数字信号处理源码

% exe 1_14

p = 0.1;N = 32*4;
u = rand(1,N);u = u-mean(u);
a = sqrt(12*p);% adjust power
u = a*u;

subplot(411);
plot(u);grid on;

Mlag = N;

ru = xcorr(u,Mlag,'biased');
subplot(412);
plot((-Mlag:Mlag),ru);title('ru(m)');

n = 0:N-1;
x = sqrt(2)*sin((pi/16)*n) + u;
subplot(413);
plot(x);title('x');


rx = xcorr(x,Mlag,'biased');
subplot(414);
plot((-Mlag:Mlag),rx);title('rx(m)');