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Deconvolving a set of points [message #69887]

Tue, 02 March 2010 01:43

panblosky
Messages: 17
Registered: May 2005

Junior Member

Hi all,

I hope you can help me with this. I have a couple of set points [x,f]
and [x,h], and I wish to deconvolve them in order to get [x,g].

I know that by the convolution theorem, f*g = h ==> h = F^(-1)
[F(f)F(g)] (F is the Fourier Transform). So, if I would like to find
g, I should do

F(h) = F(g)F(f)
F(g) = F(h)/F(f)
g = F^(-1)[F(h)/F(f)] (assuming f is non-zero)

I am trying to implement this in IDL with a simple function (the
convolution of two square pulses, and then deconvolving in order to
get the same function), but I get different things.

Does anybody know how to do this?

Thanks!

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