www.pudn.com > programradarsystemdisign.zip > Fig4_2.m

% Use this program to reproduce Fig. 4.2 of text 
close all 
clear all 
eps = 0.000001; 
taup = 3.; 
taumin = -1.1 * taup; 
taumax = -taumin; 
x = single_pulse_ambg(taup); 
taux = taumin:.05:taumax; 
fdy = -7/taup:.05:7/taup; 
figure(1) 
mesh(taux,fdy,x); 
xlabel ('Delay - seconds') 
ylabel ('Doppler - Hz') 
zlabel ('Ambiguity function') 
colormap([.5 .5 .5]) 
colormap (gray) 
figure(2) 
contour(taux,fdy,x); 
xlabel ('Delay - seconds') 
ylabel ('Doppler - Hz') 
colormap([.5 .5 .5]) 
colormap (gray) 
grid 
y = x.^2; 
figure(3) 
mesh(taux,fdy,y); 
xlabel ('Delay - seconds') 
ylabel ('Doppler - Hz') 
zlabel ('Ambiguity function') 
colormap([.5 .5 .5]) 
colormap (gray) 
figure(4) 
contour(taux,fdy,y); 
xlabel ('Delay - seconds') 
ylabel ('Doppler - Hz') 
colormap([.5 .5 .5]) 
colormap (gray) 
grid