%ambiguity function examples;
x1=logon(64,-0.4,256);
[A1,f,t]=ambigu(x1,256);
imagesc(t,f,abs(A1));
pause
x2=logon(64,-0.4,256)+logon(180,0.2,256);
[A2,f,t]=ambigu(x2,256);
figure
imagesc(t,f,abs(A2));
pause
x3=freqhops(64,0.2,64,0.6);
[A3,f,t]=ambigu(x3,256);
figure
imagesc(t,f,abs(A3));