Time Frequency Analysis!

Muthuraman Muthuraman muthuraman10 at HOTMAIL.COM
Mon Feb 19 12:52:25 CET 2007

Thanks for the suggestion but using the mtmfft which i have done already and
it works, my interest now is that i would like to use the Time frequency
analysis 'mtmconvol'  to estimate the power in the time frequency scale, in
which how to get the whole 30secs continous  data in one time frequency

Thanking you

with regards

>From: Christian Hesse <c.hesse at FCDONDERS.RU.NL>
>Reply-To: FieldTrip discussion list <FIELDTRIP at NIC.SURFNET.NL>
>Subject: Re: [FIELDTRIP] Time Frequency Analysis!
>Date: Mon, 19 Feb 2007 11:56:19 +0100
>Hi Muthuraman,
>>One more question regarding the Time frequency Analysis, i have EMG  data
>>of 24000 data points with a sampling frequeny of 800Hz(30  seconds of
>>continous data). I would like to do the Timefrequency  analysis for this
>>data and to see the power for the whole 30 seconds
>use preprocessing to get the EMG data into a single 30s trial (if you  want
>to analyze the rectified EMG, then do the rectification in  preprocessing),
>then use frequanalysis with
>cfg.method = 'mtmfft';
>cfg.output = 'pow';
>this should give you the power spectrum of your EMG data over the  entire
>30 second period.
>Christian Hesse, PhD, MIEEE
>F.C. Donders Centre for Cognitive Neuroimaging
>P.O. Box 9101
>NL-6500 HB Nijmegen
>The Netherlands
>Tel.: +31 (0)24 36 68293
>Fax: +31 (0)24 36 10989
>Email: c.hesse at fcdonders.ru.nl
>Web: www.fcdonders.ru.nl

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