1. A method of processing measured signals, comprising the steps of: a) determining noise variance at each of the measured signals based upon a predetermined noise model; b) automatically generating a discrete kernel of a filter for each of the measured signals based upon a predetermined Pth power of the noise variance to be used as a frequency response of the filter at each of the measured signals; and c) applying the discrete kernel to a corresponding one of the measured signals to generate a filtered measured signal.