Handling range-ambiguities in registration-based range-dependence compensation for conformal array STAP

Philippe Ries, Jacques G. Verly, Fabian D. Lapierre

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We consider space-time adaptive processing (STAP) when the radar returns are recorded by a conformal antenna array (CAA). The statistics of the secondary data snapshots used to estimate the optimum weight vector are not identically distributed with respect to range, thus preventing the customary STAP processor from achieving its optimum performance. Realistic compensation of the range dependence of the secondary data requires to account for range ambiguities in the clutter returns. We propose an innovative extension of our registrationbased range-dependence compensation algorithm. Our extension allows to obtain an accurate estimate of the interference-plusnoise covariance matrix even when the ground clutter return for a given fast-time sampling instant includes returns from isoranges that are ambiguous in range. The performance in terms of signalto-interference-plus-noise ratio loss is promizing.

Original languageEnglish
Title of host publication2009 International Radar Conference "Surveillance for a Safer World", RADAR 2009
Publication statusPublished - 2009
Event2009 International Radar Conference "Surveillance for a Safer World", RADAR 2009 - Bordeaux, France
Duration: 12 Oct 200916 Dec 2009

Publication series

Name2009 International Radar Conference "Surveillance for a Safer World", RADAR 2009

Conference

Conference2009 International Radar Conference "Surveillance for a Safer World", RADAR 2009
Country/TerritoryFrance
CityBordeaux
Period12/10/0916/12/09

Keywords

  • Conformal antenna
  • Range ambiguities
  • Range dependence
  • Space-time adaptive processing (STAP)

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