Filter/Removal of periodic 'delta-peaks'

186 Views Asked by At

Currently I am measuring data (Counts over Time).

Due to measurement problems I have some nasty peaks in this data. These peaks are periodical, very sharp (~3 datapoints over a range of 10000) and about 3 times higher than the normal noise ('delta-peaks'):

......|......|......|......|......|......

Currently we just clear these values out by setting these to NaN (not a number).

I think this is a typical solution by physicists and you would find a more elegant way.

I thought about Fourier filter, but since these peaks are very sharp the Fourier transform has periodic 'delta-peaks', too.

Do you have an idea how to solve this problem?

Thanks a lot.