The Influence of Windowing on Bias and Variance of DFT-based Frequency and Phase Estimation

Stefan Schuster; Stefan Scheiblhofer; Andreas Stelzer

doi:10.1109/tim.2008.2006131

The Influence of Windowing on Bias and Variance of DFT-based Frequency and Phase Estimation

Stefan Schuster
, Stefan Scheiblhofer
, Andreas Stelzer

Institut für Nachrichtentechnik und Hochfrequenzsysteme

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

Abstract

In sinusoidal parameter-estimation problems for measurement applications, discrete spectra with high dynamic range are often under investigation. To suppress unwanted interference effects (ldquoleakagerdquo) in the discrete Fourier transform (DFT) spectrum, the application of data windows is common practice. In this paper, the influence of windowing on the bias and variance of the frequency and phase estimates, calculated via the DFT, is investigated. Furthermore, the effect of choosing different sampling start times on both the bias and the variance is discussed.

Originalsprache	Englisch
Seiten (von - bis)	1975-1990
Seitenumfang	16
Fachzeitschrift	IEEE Transactions on Instrumentation and Measurement
Volume	58
Ausgabenummer	6
DOIs	https://doi.org/10.1109/tim.2008.2006131
Publikationsstatus	Veröffentlicht - Juni 2009

Wissenschaftszweige

202 Elektrotechnik, Elektronik, Informationstechnik
202019 Hochfrequenztechnik
202029 Mikrowellentechnik
202030 Nachrichtentechnik
202033 Radartechnik
202037 Signalverarbeitung
202038 Telekommunikation

Zugriff auf Dokument

10.1109/tim.2008.2006131

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abstract = "In sinusoidal parameter-estimation problems for measurement applications, discrete spectra with high dynamic range are often under investigation. To suppress unwanted interference effects (ldquoleakagerdquo) in the discrete Fourier transform (DFT) spectrum, the application of data windows is common practice. In this paper, the influence of windowing on the bias and variance of the frequency and phase estimates, calculated via the DFT, is investigated. Furthermore, the effect of choosing different sampling start times on both the bias and the variance is discussed.",

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