Estimating tropospheric refractivity parameters from radar sea clutter

Joseph Tabrikian, Jeffrey L. Krolik, Sathya Vasudevan

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

4 Scopus citations

Abstract

The capping inversion of the marine boundary layer is often associated with ducted microwave propagation which can significantly impact shipboard radars. This paper concerns the problem of characterizing ducted propagation by estimating parameters of the index of refraction profile using radar sea clutter returns. Specifically, a maximum a posteriori (MAP) estimate is proposed for determining duct height and its first-order range-dependence under conditions of uncertain slowly range-varying surface backscatter cross-section. In addition, a fast recursively-computed hybrid Cramer-Rao bound on refractivity estimation is developed. Finally, real data refractivity estimation results are presented using radar clutter returns collected off the Virginia coast. Preliminary refractivity estimates compare favorably with measurements made using helicopter-borne instruments out to a range of approximately 50 km.

Original languageEnglish
Title of host publicationProceedings of the IEEE Signal Processing Workshop on Higher-Order Statistics, SPW-HOS 1999
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages345-348
Number of pages4
ISBN (Electronic)0769501400, 9780769501406
DOIs
StatePublished - 1 Jan 1999
Event1999 IEEE Signal Processing Workshop on Higher-Order Statistics, SPW-HOS 1999 - Caesarea, Israel
Duration: 14 Jun 199916 Jun 1999

Publication series

NameProceedings of the IEEE Signal Processing Workshop on Higher-Order Statistics, SPW-HOS 1999

Conference

Conference1999 IEEE Signal Processing Workshop on Higher-Order Statistics, SPW-HOS 1999
Country/TerritoryIsrael
CityCaesarea
Period14/06/9916/06/99

ASJC Scopus subject areas

  • Signal Processing
  • Statistics and Probability

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