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Re: Maxima locating in noisy data
From: |
Sergei Steshenko |
Subject: |
Re: Maxima locating in noisy data |
Date: |
Tue, 29 Jun 2010 07:12:17 -0700 (PDT) |
--- On Tue, 6/29/10, dirac <address@hidden> wrote:
> From: dirac <address@hidden>
> Subject: Maxima locating in noisy data
> To: address@hidden
> Date: Tuesday, June 29, 2010, 2:30 AM
>
> Hi again,
>
> I am unsure if this is the purpose of the forum, but I am
> having problems
> finding a way to locate peaks in some noisy data. It is
> basically a
> Fabry-Perot laser spectrum which is stored in a matrix of
> 10002 lines and 21
> columns...This is terribly vague I know but any suggestions
> would be awesome
>
> Thanks in advance
> Martin
>
> -----
> Converting myself from Excel to Octave for reasons I hope
> to find out.
> --
> View this message in context:
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Use a low-pass filter of your liking (e.g. Butterworth) to filter the spectrum
- this will eliminate narrow peaks.
A widely used approach of gliding average is also application of a low
pass filter.
...
On a side note, since you are dealing with spectrum, have a look at
http://www.unipress.waw.pl/fityk/
- not related to GNU Octave, but maybe a good fit for your problem.
Regards,
Sergei.