%%demo?of?chirp?signal?after?matched?filter??
clear
clc
close?all
T=10e-6;?????????????????????????
B=30e6;?????????????????????????????%chirp?frequency?modulation?bandwidth?30MHz?
K=B/T;????????????????????????
Fs=10*B;Ts=1/Fs;????????????????????%sampling?frequency?and?sample?spacing?
N=T/Ts;??
t=linspace（-T/2T/2N）;?
St=exp（j*pi*K*t.^2）;?????????
??????????%chirp?signal
Ht=exp（-j*pi*K*t.^2）;?????????????
?????%matched?filter??
Sot=conv（StHt）;??????????????????????%chirp?signal
?????%after?matched?filter?
figure（1）
plot（1:length（Sot）Sot）;

L=2*N-1;
t1=linspace（-TTL）;?
Z=abs（Sot）;
figure（3）
plot（t1Sot）

Z=Z/max（Z）;????????????????%normalize?
?Z=20*log10（Z+1e-6）;?
Z1=abs（sinc（B.*t1））;???????????????????%sinc?function?Z1=20*log10（Z1+1e-6）;?
t1=t1*B;?

sub

?屬性????????????大小?????日期????時(shí)間???名稱
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?????文件???????1882??2009-11-11?20:03??window.m

?????文件??????19968??2010-03-22?10:25??說明.doc

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????????????????21850????????????????????2