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pythonmatlabscipynoise

Remove spike noise from data in Python

I'm transitioning all of my data analysis from MATLAB to Python and I've finally hit a block where I've been unable to quickly find a turnkey solution. I have time series data from many instruments including an ADV (acoustic doppler velocimeter) that require despiking. Previously I've used this function in MATLAB that works quite well: http://www.mathworks.com/matlabcentral/fileexchange/15361-despiking

Is anybody aware of a similar function available in Python?

Solution

  • I'd use median filter, and there are plenty of options depending on your data class, for example

    import scipy.ndimage as im
x= im.median_filter(x, (self.m,self.m))