comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » fourier transform

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Fourier Transform [message #74127 is a reply to message #45093]

Tue, 21 December 2010 14:27

Ammar Yusuf
Messages: 36
Registered: October 2010

Member

On Dec 21, 2:55 pm, Paolo <pgri...@gmail.com> wrote:
> 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.
>
>

They are not random. They come from some type of a model. One has
something called waves and the other doesn't. Thanks.

Report message to a moderator

[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

Previous Topic:	GERMAN FAKE PASSPORT,BELGIUM FAKE PASSPORT,ITALIAN FALSE PASSPORT,BUY FAKE PASSPORT
Next Topic:	updating the coyote library

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 18:16:41 PDT 2025

Total time taken to generate the page: 0.00222 seconds