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Topic: FFT of filtered signal
Replies: 7   Last Post: Nov 13, 2013 8:15 PM

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kzelechowski@e3tech.local

Posts: 27
Registered: 4/30/13
Re: FFT of filtered signal
Posted: Nov 6, 2013 5:35 AM
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How about findpeaks(Y) instead?

U?ytkownik "swinnn " napisa? w wiadomo?ci grup
dyskusyjnych:l5706s$ag2$1@newscl01ah.mathworks.com...

M=length(DataFilt); % Length of filtered signal
nfft=2^nextpow2(M);
Y=fft(DataFilt,nfft)/M
Below is my code for detection peaks for filtered signal. This code works
but it doesnt return me highest 10 frequencies but highest peak in filtered
signal graph.

[peakValues, peakLocations] = findpeaks(DataFilt)

Could anybody help me, please?? ANY suggestions? I've been googling a lot,
but cant find the solution.

My graphs: http://tinypic.com/view.php?pic=2j0durp&s=5#.UncD61OKJVW




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