fig_3_12_bc.m

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

clear all;
R=10;C=1e-11;
it=0;iif=0;
for t=0:1e-12:1e-9;
    it=it+1;
    h(it)=1/(R*C*sqrt(5))*(-exp(-(3+sqrt(5))/(2*R*C)*t)+exp(-(3-sqrt(5))/(2*R*C)*t));
end,
figure (1);t=0:1e-12:1e-9;plot(t,h,'r');grid;
xlabel('Time, sec');ylabel('Impulse Response');grid on;
for f=0:1e8:2e10;
    iif=iif+1;
    H(iif)=1/abs(R*R*C*C*(j*2*pi*f)^2+3*R*C*(j*2*pi*f)+1);
end,
figure (3);f=0:1e8:2e10;plot(f,H,'r');
xlabel('Frequency, Hz');ylabel('Frequency Response');grid;