4楼: Originally posted by 阿丁 at 2013-11-02 18:25:12
c=-516:516;
r=-516:516;
l=1;
=meshgrid(c,r);
=cart2pol(x,y);

for l=1:8
    subplot(2,4,l)
    g=mod(l*theta,2*pi);
    imshow(g,[])
    l=l+1;
end
figure
imshow(mod(-2*theta,2*pi),[])...

2楼: Originally posted by httpftp at 2013-03-05 08:17:30
个人认为：这个图的(a)（b）有点小问题但不算错：一般而言，相位调制都是从零相位开始的，就像图(c)一样。