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

  • Stefan Schuster
  • , Stefan Scheiblhofer
  • , Andreas Stelzer

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
Pages (from-to)1975-1990
Number of pages16
JournalIEEE Transactions on Instrumentation and Measurement
Volume58
Issue number6
DOIs
Publication statusPublished - Jun 2009

Fields of science

  • 202 Electrical Engineering, Electronics, Information Engineering
  • 202019 High frequency engineering
  • 202029 Microwave engineering
  • 202030 Communication engineering
  • 202033 Radar technology
  • 202037 Signal processing
  • 202038 Telecommunications

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