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  • Research Article
  • Open Access

Adaptive Algorithm for Chirp-Rate Estimation

  • 1Email author,
  • 2,
  • 1 and
  • 3
EURASIP Journal on Advances in Signal Processing20092009:727034

  • Received: 5 March 2009
  • Accepted: 26 June 2009
  • Published:


Chirp-rate, as a second derivative of signal phase, is an important feature of nonstationary signals in numerous applications such as radar, sonar, and communications. In this paper, an adaptive algorithm for the chirp-rate estimation is proposed. It is based on the confidence intervals rule and the cubic-phase function. The window width is adaptively selected to achieve good tradeoff between bias and variance of the chirp-rate estimate. The proposed algorithm is verified by simulations and the results show that it outperforms the standard algorithm with fixed window width.


  • Confidence Interval
  • Radar
  • Information Technology
  • Quantum Information
  • Sonar

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Authors’ Affiliations

Electrical Engineering Department, University of Montenegro, Cetinjski put bb, 81000 Podgorica, Montenegro
Gipsa Lab, INP Grenoble, 38402 Grenoble, France
Department of Electrical and Computer Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA


© Igor Djurović 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.