fig6_5.m

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% Use this program to reproduce Fig. 6.5 of tetxt
close all
clear all
eps = 0.0001;
taup = 1.;
b = 5.;
up_down = 1.;
x = lfm_ambg(taup, b, up_down);
taux = -1.1*taup:.035:1.1*taup;
fdy = -1.5*b:.035:1.5*b;
figure(1)
mesh(taux,fdy,sqrt(x))
xlabel ('Delay - seconds')
ylabel ('Doppler - Hz')
zlabel ('Uncertainty function')
axis tight
figure(2)
contour(taux,fdy,sqrt(x))
xlabel ('Delay - seconds')
ylabel ('Doppler - Hz')
grid
axis tight
figure(3)
mesh(taux,fdy,x)
xlabel ('Delay - seconds')
ylabel ('Doppler - Hz')
zlabel ('Ambiguity function')
axis tight
figure(4)
contour(taux,fdy,x)
xlabel ('Delay - seconds')
ylabel ('Doppler - Hz')
grid
axis tight