cp0201_dsseq_bpskdsseq.m

用MATLAB仿真DS-BPSK超宽带通信系统性能(DS-UWB发射信号)

function [BPSKDSseq,DSseq]=cp0201_BPSK_DS(seq,fc,Ts,DScode)
dt=1./fc;
framesamples=floor(Ts./dt);
DSp=length(DScode);
totlength=framesamples*length(seq);
DSseq=zeros(1,totlength);
BPSKDSseq=zeros(1,totlength);
for k=1:length(seq);
    index=1+(k-1)*framesamples;
    kDS=DScode(1+mod(k-1,DSp));
    DSseq(index)=kDS;
    p=((pi/4)*(2*k-1))-pi;
    BPSKDSseq(index)=kDS*cos(p);  
end