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Topic: peak detection and analysis
Replies: 6   Last Post: Mar 10, 2011 10:59 AM

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David B. Chorlian

Posts: 173
Registered: 12/7/04
Re: peak detection and analysis
Posted: Oct 2, 2007 1:52 PM
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In <fdt5ri$oa8$1@fred.mathworks.com> "Megan " <megsoc@gmail.com> writes:

>Hello
>I need to do some data analysis which I imagine is very
>simple to do but have been looking around and have no idea
>where to start.
>I have one dimensional data sets which are noisy where I
>want to detect the peaks (both positive and negative) and
>thenextract some properties of these peaks like amplitude,
>time-to-peak and half width.
>The peaks come sporadically and do not all have the same
>shape, and are often asymmetrical.
>Thank you


Try a Savitsky-Golay filter, find the derivative and look for
zero-crossings.

--
David B. Chorlian
Neurodynamics Lab SUNY/HSCB
chorlian@cns.hscbklyn.edu
davidc@panix.com



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