Determine Peak Widths
Create a signal that consists of a sum of bell curves. Specify the location, height, and width of each curve.
x = linspace(0,1,1000); Pos = [1 2 3 5 7 8]/10; Hgt = [4 4 2 2 2 3]; Wdt = [3 8 4 3 4 6]/100; for n = 1:length(Pos) Gauss(n,:) = Hgt(n)*exp(-((x - Pos(n))/Wdt(n)).^2); end PeakSig = sum(Gauss);
Plot the individual curves and their sum.
Measure the widths of the peaks using the half prominence as reference.
Measure the widths again, this time using the half height as reference.
findpeaks(PeakSig,x,'Annotate','extents','WidthReference','halfheight') title('Signal Peak Widths')