generatebackground.m

来自「ESTIMATION OF AIRCRAFT TRAJECTORY FROM I」· M 代码 · 共 11 行

% Generate a  sinusoidally correlated background:
backsize = framesize+50;  % Make the background bigger than the frame so when it
                          % drifts there are new pixels available to drift into.
xygrid = (1:backsize)/backsize;
B=2*sin(2*pi*xygrid).^2'*cos(2*pi*xygrid).^2;

psd = fft2(B);
psd = real(psd.*conj(psd));

background = B + 0.5*randn(backsize);    % Add a specular gaussian white sequence to the structure with