chirp_matchfilter.m

对雷达系统中的常用LFM线性调频（chirp）信号及其匹配滤波器的设计进行MATLAB仿真

TW=50;p=10;
s=dchirp(TW,p);
h=conj(s(end:-1:1));
T=25e-6;
N=p*TW;
ts=[-N/2:N/2];ts(end)=[];th=ts;
[y,ty]=conv_m(s,ts,h,th);
ty=ty/(p*TW/T); % the actual timelabel of sampled point
figure(1)
plot(ty*1e6,abs(y))
title('The output from the matched filter to Chirp signal')
xlabel('t (\mus)'),ylabel('The magnitude of y(n)')