problem_3_2_b.m

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

clear all;
iif=0;
for f=0:.001:2;
    iif=iif+1;
    if f==0;X2(iif)=8;else X2(iif)=8*sin(2*pi*f)/(2*pi*f)*cos(10*pi*f);end;
end,
figure (1);f=0:.001:2;plot(f,abs(X2),'r');grid;
xlabel('f');ylabel('|X_2(f)|');grid on;
figure (2);f=0:.001:2;plot(f,angle(X2),'r');grid;
xlabel('f');ylabel('Phase of X_2(f)');grid on;