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inverse fourier transform
From: |
Heber Farnsworth |
Subject: |
inverse fourier transform |
Date: |
Wed, 2 Apr 2003 00:45:48 -0600 |
Some of you will laugh at me for this but I've never done an inverse
fourier transform. I need to use a probability density function which
I don't know in closed form but I do have a closed form for it's
characteristic function (fourier transform). But when I try ifft I get
something that is complex. I know that this thing is the fourier
transform of a real density. How do I get a real (not complex) thing
out of this? Here some things I'm not sure about which may be causing
my confusion.
1. I'm not sure what range of frequencies to use: [-pi,pi]? something
else?
2. I may not be using fftshift correctly.
Is there anyone out there that does this a lot that can give me some
pointers?
Heber Farnsworth
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- inverse fourier transform,
Heber Farnsworth <=