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raj

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12 Apr 2012 PeakFinder Quickly finds local maxima (peaks) or minima (valleys) in a noisy signal. Author: Nathanael Yoder

Hello all, I have a problem with this code when my SNR is less 1.9 dB I CANT DETECT MY PEAKS OF INTEREST. What i want to know is it not possible to detect peaks at such noisy conditions ???

28 Mar 2012 PeakFinder Quickly finds local maxima (peaks) or minima (valleys) in a noisy signal. Author: Nathanael Yoder

the code works well but some times it happens that peaks which are not required I mean after initializing a certain value for 'sel' the peaks which are not supposed to be detected (peaks created by noise) and sometimes they are not detected

22 Mar 2012 extrema.m, extrema2.m Search all extrema points of a time series or a surface with/without NaN's. Author: Carlos Adrian Vargas Aguilera

{surf(T,f,G'), shading interp
[Gmax,imax,Gmin,imin] = extrema2(G);
hold on
plot3(T(imax),f(imax),Gmax,'bo')
for i = 1:length(Gmax)
text(x(imax(i)),y(imax(i)),zmax(i),[' ' num2str(zmax(i))])
end
hold off}
My problem is the T,f,G are of different sizes and an error comes up saying '??? Index exceeds matrix dimensions.' any suggestions please help

22 Mar 2012 extrema.m, extrema2.m Search all extrema points of a time series or a surface with/without NaN's. Author: Carlos Adrian Vargas Aguilera

I have a problem while using it for an array can u explain an example as u did it for a vector please, I am a begginer with this stuff

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