fig_3_3_ab.m

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

clear all;
it=0;
for t=-7:.1:7;
    it=it+1;
    fc(it)=(t*t-1)*exp(-t*t/4);
end;
figure (1);plot(-7:.1:7,fc,'k'); grid on;
axis([-7 7 -1.5 1.5]);
xlabel('Time, sec');ylabel('Continious time UWB pulse');grid on;

it=0;
for t=-7:.35:7;
    it=it+1;
    fd(it)=(t*t-1)*exp(-t*t/4);
end;
figure (2);
plot(-7:.35:7,fd,'rs','LineWidth',2,...
                'MarkerEdgeColor','k',...
                'MarkerFaceColor','g',...
                'MarkerSize',4)
grid on;
axis([-7 7 -1.5 1.5]);
xlabel('Time, sec');ylabel('Discrete-time UWB pulse');grid on;