exe0111.m

Matlab程序为清华大学胡广书版信号处理的上机习题答案

%(1)x1=Asin(2.pi.f0.t),其中A=220,f0=50HZ
n1=0:1:100;
x1=220*sin(2*pi*50*n1/5000);
subplot(2,2,1);
stem(n1,x1);

%(2)x2
n2=0:1:100;
x2=2*exp(-0.5*n2/40).*sin(2*pi*2*n2/40);
subplot(2,2,2);
stem(n2,x2);

%(2)x3