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Recent content by PetterNL

  1. PetterNL

    local extrema

    The min(max) is the minimum of the local maximum when you use a slide window on a signal. Max(min) is the opposite: the maximum of the local minimum. It creates the upper envelope and lower envelope of the signal.
  2. PetterNL

    local extrema

    Hello everybody! I am trying to determine and plot the local extrema (min(max) and max(min)) for the signal y=x.*w with x(400:1424)=sin(2*pi*t) and w(400:1424)=sin(52*pi*t). I am using matlab 2010b with the following script: clc clear all Fs=1024; t = 0:1/Fs:1; x=zeros(1,1824)...

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