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Re: Fourier Transform [message #74133 is a reply to message #45093]

Tue, 21 December 2010 11:55

pgrigis
Messages: 436
Registered: September 2007

Senior Member

Given two random arrays A1 and A2, you almost surely cannot find a
passband filter that converts on into the other.

Ciao,
Paolo

On Dec 21, 12:41 pm, Ammar Yusuf <amyus...@gmail.com> wrote:
> Hi, let's say I have 2 graphs (2 arrays with numbers). They both look
> different but are similar. I'm doing a FFT on one of the arrays and
> then zero out some of the coefficients and then do an inverse FFT on
> that array to try to get the 2nd array. When I plot the 2nd array and
> the inverse one I get something similar to it but not close enough.
> I've tried zeroing many coefficients but can't get anywhere. What
> would be the best way to do this? Thanks.

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[Message index]

		fourier transform By: Pravesh on Mon, 01 August 2005 08:16
		Re: Fourier Transform By: R.G.Stockwell on Thu, 23 December 2010 14:15
		Re: Fourier Transform By: Ammar Yusuf on Tue, 21 December 2010 14:27
		Re: Fourier Transform By: Kenneth P. Bowman on Tue, 21 December 2010 11:51
		Re: Fourier Transform By: pgrigis on Tue, 21 December 2010 11:55

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