tr_pulse_train.m

来自「这是一个较为完整的tr方式uwb接收机的M文件」· M 代码 · 共 28 行

function  [reference,data] = tr_pulse_train(sample_time,nTp,nTd,nTf,Ns)

%-----------------------------------------------------------------------
%pulse shape
t = 0:sample_time:nTp*sample_time;
Tau = nTp*sample_time/2.1432;   
Tc = nTp*sample_time/2;
x = (1-4*pi*(t-Tc).*(t-Tc)/(Tau*Tau)).*exp(-2*pi*(t-Tc).*(t-Tc)/(Tau*Tau));

%-----------------------------------------------------------------------
%reference pulse in a symbol
reference = [];
r = zeros(nTf,1);
r(1:nTp) = x(1:nTp);
for i=1:Ns
    reference=[reference;r];
end

%-----------------------------------------------------------------------
%data pulse in a symbol
data = [];
d = zeros(nTf,1);   
d(nTp+nTd+1:nTp+nTd+nTp)= x(1:nTp);
for i=1:Ns
    data=[data;d];
end

%-----------------------------------------------------------------------