FFT of time-varying 2D position data

I need to do an FFT of time-varying 2D position data.
ie,
  I have got x=f(t), and y=f(t) at equal discrete time intervals and
the objective is to filter desired frequency ranges and do an inverse
fft. 
Please guide me!
Thanks,
Binesh

>I need to do an FFT of time-varying 2D position data.
>ie,
>  I have got x=f(t), and y=f(t) at equal discrete time intervals and
>the objective is to filter desired frequency ranges and do an inverse
>fft. 
>Please guide me!
>Thanks,
>Binesh
>

I don't understand the problem. Can anybody help?

- Krishna

Look for the ImageJ program (freeware, search google ImageJ) which will
let you do a 2D FFT on any array of data and visualize the result. It
will also let you apply a filter in frequency domain.

Chris
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Chris Bore
ww.bores.com