Performance analysis of data sample reduction techniques for STAP

S. Unnikrishna Pillai, Joseph R. Guerci, S. Radhakrishnan Pillai

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

Abstract

To detect and identify targets in changing interference environment that includes clutter and jammers, Space Time Adaptive Processing (STAP) algorithms can be utilized. Often in nonstationary clutter, the available stationary sample support data is severely limited to be useful for direct implementation of the sample space-time covariance matrix inversion approach for optimal detection. In this paper we outline and compare two new approaches to address the sample support problem: (i) Generalized forward-backward sub-aperture-subspace smoothing techniques to reduce the number of data samples in estimating the sample covariance matrices (ii) Projection methods using alternating projections or relaxed projection operators onto desired convex sets to retain the a-priori known structure of the covariance matrix. Performance comparisons are presented to show that by utilizing these approaches with eigen based techniques, it is possible to reduce significantly the data samples required in non-stationary environment and consequently achieve superior target detection.

Original languageEnglish (US)
Title of host publicationIEEE International Symposium on Phased Array Systems and Technology 2003, Array 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages565-570
Number of pages6
ISBN (Electronic)078037827X
DOIs
StatePublished - Jan 1 2003
Event6th IEEE Phased Array Systems and Technology Symposium, Array 2003 - Boston, United States
Duration: Oct 14 2003Oct 17 2003

Publication series

NameIEEE International Symposium on Phased Array Systems and Technology
Volume2003-January

Other

Other6th IEEE Phased Array Systems and Technology Symposium, Array 2003
CountryUnited States
CityBoston
Period10/14/0310/17/03

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Pillai, S. U., Guerci, J. R., & Pillai, S. R. (2003). Performance analysis of data sample reduction techniques for STAP. In IEEE International Symposium on Phased Array Systems and Technology 2003, Array 2003 (pp. 565-570). [1257043] (IEEE International Symposium on Phased Array Systems and Technology; Vol. 2003-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PAST.2003.1257043