Detecting peaks with a specified range of amplitudes?

Say i have a signal with range betwene [-3, 3] and I want to locate peaks within an amplitude range of say [0, 1], how might I do this? I.e., detect peak amolitudes within a given boundary of allowed amplitude values?

Answer 1

[Luca Ferro]

use the findpeaks() function: Find local maxima - MATLAB findpeaks (mathworks.com)

if you need the range [0 1] just filter it out of the resulting vector afterwards, for example.

[pks,locs] = findpeaks(PeakSig,x); %peakSgn = the signal you want to analyze, x = the linspace you are working on

upperBound= locs > 0;

lowerBound= locs < 1;

peaksInRange= locs.*upperBound.*lowerBound

or more in a more compact way:

[pks,locs] = findpeaks(PeakSig,x); %peakSgn = the signal you want to analyze, x = the linspace you are working on

peaksInRange= (locs > 0 & locs < 1).*locs;

[Luca Ferro]

did this solved your problem?