cp02011.asv

uwb的信号产生以及几种调制方法

fc=10e10;
Tm=0.9e-9;
tau=0.2e-9;
dt = 1 / fc;            % reference sampling period
OVER = floor(Tm/dt);    % number of samples representing
                        %  the pulse

e = mod(OVER,2);
kbk = floor(OVER/2);
tmp = linspace(dt,Tm/2,kbk);
s = (1-4.*pi.*((tmp./tau).^2)).* ...
     exp(-2.*pi.*((tmp./tau).^2));
plot(s,t);
grid on ;