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  • Research Article
  • Open Access

An Estimation-Range Extended Autocorrelation-Based Frequency Estimator

EURASIP Journal on Advances in Signal Processing20102009:961938

  • Received: 24 June 2009
  • Accepted: 19 October 2009
  • Published:


We address the problem of autocorrelation-based single-tone frequency estimation. It has been shown that the frequency can be estimated from the phase of the available signal's autocorrelation with fixed lag. A large lag results in better performance but at the same time limits the estimation range. New methods have been proposed to extend the estimation range. In this paper, a new estimator which is a robust hybrid of periodogram-based and autocorrelation-based frequency estimators is presented. We propose to calculate the autocorrelation function with spectral lines inside the available signal's main lobe spectrum. We show that the new estimator obtains full estimation range of . The theoretical performance bound is also deduced. Performance analysis and simulations demonstrate that the proposed estimator approaches the CRLB.


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Authors’ Affiliations

School of Electronic and Information Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China


© Cui Yang et al. 2009

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.