ex_10_10_1.m

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% ex_10_10_1.m :  习题 10.10

clear all;
close all;
%
N=50000;
u1=rand(1,N);u1=u1-mean(u1);
u2=randn(1,N);
rx1=xcorr(u1,40,'biased');
rx2=xcorr(u2,40,'biased');
t=-40:1:40;
figure('color','w')
subplot(321);
plot(u1(1:100));
%title('original signal u(n)');
subplot(323)
plot(t,rx1);
%title('corr signal rx(n)');
subplot(325)
hist(u1,50);grid on;
%ylabel('histogram of u(n)');
%
subplot(322);
plot(u2(1:100));
%title('original signal u1(n)');
subplot(324)
plot(t,rx2);
%title('corr signal rx1(n)');
subplot(326)
hist(u2,50);grid on;
%ylabel('histogram of u1(n)');