problem_3_4_b.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)=exp(-i*omega)*(1-cos(omega/2));
 end,
figure (1);omega=-pi:.001:pi;plot(omega,abs(X),'r');
axis([-pi pi 0 1.2]);
xlabel('\it\Omega');ylabel('{\it|H}({\ite^{j\Omega }})|');grid on;