Simple, fast and accurate four-point estimators of sinusoidal signal frequency

• Autorzy: Sienkowski S. , Krajewski M.

Identyfikatory

DOI

10.24425/119561

• Języki publikacji: EN

Abstrakty

EN

In this paper, two new sinusoidal signal frequency estimators calculated on the basis of four equally spaced signal samples are presented. These estimators are called four-point estimators. Simulation and experimental research consisting in signal frequency estimation using the invented estimators have been carried out. Simulation has also been performed for frequency tracking. The simulation research was carried out applying the MathCAD computer program that determined samples of a sinusoidal signal disturbed by Gaussian noise. In the experimental research, sinusoidal signal samples were obtained by means of a National Instruments PCI-6024E data acquisition card and an Agilent 33220A function generator. On the basis of the collected samples, the values of four-point estimators invented by the authors and, for comparison, the values of three- and four-point estimators proposed by Vizireanu were determined. Next, estimation errors of the signal frequency were determined. It has been shown that the invented estimators can estimate a signal frequency with greater accuracy.

Słowa kluczowe

EN

sinusoidal signal; frequency estimation; frequency tracking

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2018
• Tom: Vol. 25, nr 2
• Strony: 359--376
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr., wzory

Twórcy

autor

Sienkowski S.

• University of Zielona Góra, Institute of Metrology, Electronics and Computer Science, Szafrana 2, 65-516 Zielona Góra, Poland

autor

Krajewski M.

• University of Zielona Góra, Institute of Metrology, Electronics and Computer Science, Szafrana 2, 65-516 Zielona Góra, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).