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From: Nimeria R on 1 Mar 2010 13:30
Hi,

have a doubt. I want to calculate a FFT with a scale factor and I don't know how to do it with Matlab. For example this case:

f=100;
landa=0.523;
N=1000;
k=2*pi/landa;

x=-N/2+1:N/2;
y=-N/2+1:N/2;
[xx,yy]=mesh(x,y);

im1=ones(N,N);

obj=exp(i*k*(xx.^2+yy.^2);

im2=im1.*obj;

%% And I want to calculate the FFT of the im2 but with a factor scale of 1/(landa*f)

Thank you!
From: Nimeria R on 2 Mar 2010 05:45
"Matt J " <mattjacREMOVE(a)THISieee.spam> wrote in message <hmh3i6$8s9$1(a)fred.mathworks.com>...
> "Nimeria R" <nimeria(a)hotmail.es> wrote in message <hmh143$han$1(a)fred.mathworks.com>...
>
> >
> > %% And I want to calculate the FFT of the im2 but with a factor scale of 1/(landa*f)
>
>
> help fft
> help fft2

Sorry, but I can't see it in Matlab help.
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