problem_3_8_d.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;
    H(iio)=1-exp(-j*omega)+exp(-j*2*omega);
end,
figure (1);omega=-pi:.001:pi;plot(omega,abs(H),'r');
axis([-pi pi 0 4]);xlabel('\Omega');ylabel('|H(e^{j\Omega})|');grid on;