Exploiting time and frequency information for Delay/Doppler altimetry

A. Halimi, C. Mailhes, J.-Y. Tourneret, T. Moreau, F. Boy

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

1 Citation (Scopus)

Abstract

Delay/Doppler radar altimetry is a new technology that has been receiving an increasing interest, especially since the launch of Cryosat-2 in 2010, the first altimeter using this technique. The Delay/Doppler technique aims at reducing the measurement noise and increasing the along-track resolution in comparison with conventional pulse limited altimetry. A new semi-analytical model with five parameters has been recently introduced for this new technology. However, two of these parameters are highly correlated resulting in bad estimation performance when estimating all parameters. This paper proposes a new strategy improving estimation performance for delay/Doppler altimetry. The proposed strategy exploits all the information contained in the delay/Doppler domain. A comparison with other classical algorithms (using the temporal samples only) allows to appreciate the gain in estimation performance obtained when using both temporal and Doppler data.

Original languageEnglish
Title of host publication2014 22nd European Signal Processing Conference (EUSIPCO)
PublisherIEEE
Pages1088-1092
Number of pages5
ISBN (Electronic)9780992862619
Publication statusPublished - 13 Nov 2014
Event22nd European Signal Processing Conference 2014 - Lisbon, Portugal
Duration: 1 Sep 20145 Sep 2014

Publication series

NameEuropean Signal Processing Conference
ISSN (Print)2219-5491

Conference

Conference22nd European Signal Processing Conference 2014
Abbreviated titleEUSIPCO 2014
CountryPortugal
CityLisbon
Period1/09/145/09/14

Keywords

  • antenna mispointing
  • delay/Doppler altimetry
  • least squares estimation
  • SAR altimetry

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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