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Equidistant interpolation with outliers

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Consider a 2 dimensional curve based on GPS data. That is, each point consists of lat long coordinates and we addiontally have a time stamp. How to create a curve that "resembles" the original but that is formed by equidistant points? The method should be robust with respect to outliers.

Answers (1)

Deepak Meena
Deepak Meena on 21 Mar 2021
Hi,
You can do the following :
  • Use the fit fucntion with ROBUST name pair argument to get a fit
  • Get the equidistant x points as
Xq = linspace(a,b,no);
  • Get the data at those points using feval function :
Yq = feval(f,Xq);% f is the fit
Now plot the data [Xq,Yq] , we will get a curve that "resembles" the original but that is formed by equidistant points
Thanks

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