www.pudn.com > programradarsystemdisign.zip > fig3_8_v1.m

clear all 
bw = 10.0; 
f0 = 10.; 
tau = 30.0e-3; 
mu = bw / tau; 
n=0; 
fs = 2.5*bw; 
for t = -1.25:.1/fs:1.25 
   n = n+1; 
   y(n) = exp(i * .5 * mu * t^2); 
end 
yfft= fftshift(fft(y,1024)); 
freq= -.5:1./1023:.5; 
plot(freq,abs(yfft)./ abs(yfft(512)),'k') 
grid 
xlabel ('Normalized frequency'); 
ylabel ('LFM amplitude spectrum') 
%title('B=10Hz ; tau= 32msec')