Measurement and estimation of arbitrary signal power using a window technique

Abstract

This paper describes an accurate method to estimate active power of repetitive non-coherently sampled arbitrary signal. For that purpose the window technique was used on not pure sine wave signals where coherent sampling was not possible but the spectral components in the signal were well separated, at least for a few FFT bins. The actual performance of the method can be tuned by the selection of the appropriate time window (Hanning, Blackmann-Harris (BH92), ...).