Uncertainty in Measuring the Power Spectrum Density of a Random Signal

Beata Palczynska, Ludwik Spiralski

Abstract

The method to assess uncertainty in measuring the power spectrum density of a random waveform is presented. Then, the evaluation of assessing uncertainty of power spectrum density is carried out. It takes into account propagation of uncertainties associated with each sample recording in the algorithm of digital signal processing and an error of the estimator bias resulting from a mathematical model of the measured value. The dependences for uncertainties in measuring the power spectrum density of a random waveform are introduced.

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IMEKO-TC4-2005-036.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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