Cramér-Rao bounds and estimation algorithms for delay/Doppler and conventional altimetry

A. Halimi, C. Mailhes, J.-Y. Tourneret

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Delay/Doppler radar altimetry has been receiving an increasing interest, especially since the launch of the first altimeter in 2010. It aims at reducing the measurement noise and increasing the along-track resolution in comparison with conventional pulse limited altimetry. A semi-analytical model was recently introduced for this new generation of delay/Doppler altimeters. The first contribution of this paper is the derivation of the Cramér-Rao bounds (CRBs) associated with the parameters of this recent delay/Doppler model. These bounds are then compared with those obtained for conventional altimetry. The second contribution of this paper is the derivation of a new weighted least squares estimator based on the semi-analytical delay/Doppler model. The performance of this estimator is very promising when compared to other more classical estimators and to the corresponding CRBs.

Original languageEnglish
Title of host publicationProceedings of the 21st European Signal Processing Conference
PublisherEUSIPCO
ISBN (Print)9780992862602
Publication statusPublished - 2013
Event21st European Signal Processing Conference 2013 - Morocco, Marrakech, Morocco
Duration: 9 Sep 201313 Sep 2013

Publication series

NameEuropean Signal Processing Conference
ISSN (Print)2219-5491

Conference

Conference21st European Signal Processing Conference 2013
Abbreviated titleEUSIPCO 2013
CountryMorocco
CityMarrakech
Period9/09/1313/09/13

Keywords

  • Cramér-Rao bounds
  • delay/Doppler map
  • least squares estimation
  • maximum likelihood estimation
  • SAR altimetry

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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  • Cite this

    Halimi, A., Mailhes, C., & Tourneret, J-Y. (2013). Cramér-Rao bounds and estimation algorithms for delay/Doppler and conventional altimetry. In Proceedings of the 21st European Signal Processing Conference [6811598] (European Signal Processing Conference). EUSIPCO.