Unbiased Estimation of the Phase of a Sinusoid

Abstract

Estimation of the phase of a sinusoid is an important problem in signal processing. The usual maximum likelihood estimator is biased and so can produce poor results, especially at low signal-to-noise ratios and/or short data records. It is proven that no unbiased estimator exists; based on the proof, a means of obtaining estimators with less bias than the maximum likelihood estimator are proposed.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2002
Accession Number
ADA525814

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  • Keith Peters
  • Steven Kay

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  • Naval Undersea Warfare Center

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