ex3010.m

来自「the file contain many matlab signal sour」· M 代码 · 共 23 行

n=-5:10;
x=sin(pi*n/2);
k=-100:100;
w=(pi/100)*k;
X=x*(exp(-j*pi/100)).^(n'*k);
[xe,xo,m]=evenodd(x,n);
XE=xe*(exp(-j*pi/100)).^(m'*k);
XO=xo*(exp(-j*pi/100)).^(m'*k);
XR=real(X);
XI=imag(X);
subplot(221)
plot(w/pi,XR)
axis([-1,1,-2,2])
subplot(222)
plot(w/pi,XI)
axis([-1,1,-10,10])
subplot(223)
plot(w/pi,real(XE))
axis([-1,1,-2,2])
subplot(224)
plot(w/pi,imag(XO))
axis([-1,1,-10,10])