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Conference Papers Year : 2013

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

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.
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Dates and versions

hal-01178633 , version 1 (20-07-2015)

Identifiers

  • HAL Id : hal-01178633 , version 1
  • OATAO : 12945

Cite

Abderrahim Halimi, Corinne Mailhes, Jean-Yves Tourneret. Cramér-Rao bounds and estimation algorithms for Delay/Doppler and conventional altimetry. 21st European Signal Processing Conference (EUSIPCO 2013), Sep 2013, Marrakech, Morocco. pp.1-5. ⟨hal-01178633⟩
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