MATLAB: Digitization of noisy signal

noisy signal digitization

I have a signal as shown in the image here. I am trying to digitize the signal so that it catches the right jump only. My system is jumping between two states with noise. I want to calculate how much time it stays up and how much down. Could you please bring a super cool idea? Thanks for your help

Best Answer

If your have version R2016a or later of the Signal Processing Toolbox, use the findchangepts (link) function.

Related Solutions

MATLAB: How to resample points with preset angle

Try this

x = points(:,1); % first column of points you shared
y = points(:,2);  % second column of points
x_new = interp1(linspace(0, 2*pi, numel(x)), x, 0:2*pi/37:2*pi);
y_new = interp1(linspace(0, 2*pi, numel(y)), y, 0:2*pi/37:2*pi);

x_new and y_new contains the required points.

MATLAB: How can i create matrix for all possible combination

Use ndgrid:

>> [deltaM,phiM] = ndgrid(delta,phi);
>> [phiM(:),deltaM(:)]
ans =
         0.05         0.05
         0.05          0.1
         0.05         0.25
         0.05          0.5
         0.05            1
         0.05            2
         0.05            3
          0.1         0.05
          0.1          0.1
          0.1         0.25
          0.1          0.5
          0.1            1
          0.1            2
          0.1            3
          0.2         0.05
          0.2          0.1
          0.2         0.25
          0.2          0.5
          0.2            1
          0.2            2
          0.2            3
          0.5         0.05
          0.5          0.1
          0.5         0.25
          0.5          0.5
          0.5            1
          0.5            2
          0.5            3

Best Answer

Related Solutions

MATLAB: How to resample points with preset angle

MATLAB: How can i create matrix for all possible combination

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