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[Help-gsl] spectrogram analysis ?


From: wally
Subject: [Help-gsl] spectrogram analysis ?
Date: Sat, 16 Jan 2010 17:07:14 +0100

Hello,

i need to analyze a set of data coming from a linear ccd Sensor via a 
microcontroller. Therefore i have to find the peaks and the area under the 
peaks as well as the average noise level.

A spline interpolation and its derivative on this data works nice . 
I presume the integration will also work to find the areas, 
but i do not know how to get the zeropoints from the 
1st derivative " gsl_spline_eval_deriv"  results to determine the peaks.

How to find the zero points ?
Is there a peakfinder on a dataset known ?
Is there an example sourcecode known which handle this problem ?

cheers wally




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