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Comparison of Asynchronous Sampling Correction Algorithms for Frequency Estimation of Signals of Poor Power Quality

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5 Author(s)
Lapuh, R. ; Metrol. Inst. of the Republic of Slovenia, Celje, Slovenia ; Clarkson, P. ; Pogliano, U. ; Hallstrom, J.K.
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The measurement of many signal parameters using digital sampling relies on synchronization between the sampling clock and the signal under analysis. Deviations in the frequency of the measured signal from that expected can lead to significant measurement errors. Many techniques for overcoming these problems have been developed. Appraisals of the performance of these algorithms usually involve relatively benign steady-state signals, and the treatment is often heavily mathematical. This paper describes the testing of several algorithms for accurately recovering frequency and harmonic amplitude and phase information from mains-borne waveforms. This paper focuses on their practical use while avoiding abstract mathematical concepts.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:60 ,  Issue: 7 )