Clutter covariance matrix estimation using weight vectors in knowledge-aided STAP

H. Jeon, Y. Chung, Wonzoo Chung, J. Kim, H. Yang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A knowledge-aided space-time adaptive processing (STAP) is a quite useful technique to suppress non-stationary and heterogeneous clutter. It estimates a covariance matrix by combining a conventional covariance matrix based on secondary data with a synthesised one by prior information. A new combining method is presented, where weight vectors, rather than constant weights, are used to combine two covariance matrices. In this method, the weight vectors are derived in a way to maximise clutter-to-noise ratio of the combined covariance matrix. A numerical simulation is conducted for a bistatic radar scenario where clutter non-stationarity and heterogeneity can be assumed and the performance of the proposed method is demonstrated in terms of clutter suppression and target detection.

Original languageEnglish
Pages (from-to)560-562
Number of pages3
JournalElectronics Letters
Volume53
Issue number8
DOIs
Publication statusPublished - 2017 Apr 13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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