Asraf Mohamed
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hi there,
i try to find the compressed signal output for squared window chirp signal by using mismatched filtet(chebyshev window). the results i got is not expected. please advise. thank you in advance.
i try to find the compressed signal output for squared window chirp signal by using mismatched filtet(chebyshev window). the results i got is not expected. please advise. thank you in advance.
Code:
clear all
fs = 10e8;
Ts = 1/fs;
f0 = 5e6;
k= 2.4e11;
dt = 1/fs;
taxis = 0:dt:25e-6;
y = sin(2*pi*(f0 + k/2*taxis).*taxis); y=y';
L=length(y);
win=chebwin(L,120);
y2=y.*win;
h=hilbert(y);
h1=real(h);
h2=imag(h);
y3=xcorr(h2,y2);
y4=mag2db(y3/max(y3));
plot(y4);
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