Skip to main content
  • Research Article
  • Open access
  • Published:

An Estimation-Range Extended Autocorrelation-Based Frequency Estimator


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.

Publisher note

To access the full article, please see PDF.

Author information

Authors and Affiliations


Corresponding author

Correspondence to Cui Yang.

Rights and permissions

Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Reprints and permissions

About this article

Cite this article

Yang, C., Wei, G. & Chen, Fj. An Estimation-Range Extended Autocorrelation-Based Frequency Estimator. EURASIP J. Adv. Signal Process. 2009, 961938 (2010).

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: