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Inverse FFT [message #33221]

Mon, 16 December 2002 08:33

aultc
Messages: 4
Registered: December 2002

Junior Member

Hi,

I hope someone help me with a problem I am having with the FFT
function.

I have a signal f_t, which I then take the FFT of to produce its
corresponding spectral components. I then want to manually compute its
inverse FT, rather than using the IDL FFT( .../inverse) function.

The reason for this is that I want each spectral component to
propogate at different velocitys over a time period t. Hence, when the
signal is recombined t seconds later, the signal *should* look
different.

I am not having much luck at the moment, so any suggestions on this
problem will be gratefully received.

Thanks,
Colin

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[Message index]

		Inverse FFT By: aultc on Mon, 16 December 2002 08:33
		Re: Inverse FFT By: R.G. Stockwell on Tue, 17 December 2002 07:02
		Re: Inverse FFT By: aultc on Wed, 18 December 2002 01:19
		Re: Inverse FFT By: R.G. Stockwell on Tue, 17 December 2002 06:42
		Re: Inverse FFT By: aultc on Tue, 17 December 2002 03:10
		Re: Inverse FFT By: aultc on Tue, 17 December 2002 03:06
		Re: Inverse FFT By: jeyadev on Mon, 16 December 2002 15:56
		Re: Inverse FFT By: Streun Andreas on Mon, 16 December 2002 10:01
		Re: Inverse FFT By: R.G. Stockwell on Mon, 16 December 2002 09:53

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