problem_3_3_c.m

Ultra.Wideband.Signals.and.Systems.in.Communication.Engineering.eBook-kB代码

clear all;
iio=0;
for omega=-pi:.001:pi;
    iio=iio+1;
     X(iio)=2/(1-0.75*exp(-i*omega));
 end,
figure (1);omega=-pi:.001:pi;plot(omega,abs(X),'r');
axis([-pi pi 0 10]);xlabel('\it\Omega');ylabel('{\it|X}({\ite^{j\Omega }})|');grid on;
figure (2);omega=-pi:.001:pi;plot(omega,angle(X),'r');
axis([-pi pi -3 3]);xlabel('\it\Omega');ylabel('Phase of {\itX }({\ite^{j\Omega }})');grid on;