Hello
Currently i am using the command 'findpeaks' to find local maximums in a plot as follows.
fs = 30000;Ts = 1/fs;t=0:Ts:10-Ts;t=t';perm = 4*pi*10^-7;%calculate spectrum with command Pspectrum expressed in db
xTable = timetable(seconds(t),stroom);[pxx,f] = pspectrum(xTable, 'Reassign',true, 'leakage',0.85);%find local maximum with findpeaks
[amplitudewaarde,frequentieamplitude] = findpeaks(pow2db(pxx),f);K = [amplitudewaarde,frequentieamplitude];figure;subplot(2,1,1)plot(f,pow2db(pxx));xlabel('Frequency (Hz)')ylabel('Power Spectrum (dB)')subplot(2,1,2)plot(frequentieamplitude,amplitudewaarde);xlabel('Frequency (Hz)')ylabel('pieken(db)')
The plot above is the spectrum and the plot below is the plot with find peaks. But this is not exactly what i want. My main goal is to only get the values coherent with the red arrows. In the figure above i placed a data tip from a value that i dont want to have. unfortunate i still obtain those values as you can see in this matrix:
All those values i dont want to retrieve. THe only values i want are the values corresponding with the peaks(red arrows). Does anyone have a sugestion on how to handle this problem?
Thanks in advance
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