ex3007.m

the file contain many matlab signal source code and many example .

clear all;
figure;
n=0:10;
x=(0.9*exp(j*pi/3)).^n;
k=-200:200;
k=k/2;
w=(pi/100)*k;
X=x*(exp(-j*pi/100)).^(n'*k);
magX=abs(X);
angX=angle(X);
subplot(311)
plot(w/pi,magX);
%axis([-2,2,0,8])
subplot(312)
plot(w/pi,angX/pi);
%axis([-2,2,-1,1])
subplot(313);
plot(x);