Downsampling of timeseries results in artificial flattening of the power spectral density. Should I first apply low pass filter?
Downsampling of timeseries results in artificial flattening of the power spectral density. Should I first apply low pass filter? Question: Edit: I have tried to incoroporate @dankal444 script. Even though it does indeed remove the high frequencies as shown in the second figure, I still get a flatter spectrum at high frequencies in the downsampled …
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