DOI QR코드

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Study on Space-Time Adaptive Processing Based on Novel Clutter Covariance Matrix Estimation Using Median Value

중위수를 이용한 새로운 간섭 공분산 행렬의 예측이 적용된 Space-Time Adaptive Processing에 대한 연구

  • Kang, Sung-Yong (Department of Computer and Radio Communication Engineering, Korea University) ;
  • Jeong, Ji-Chai (Department of Computer and Radio Communication Engineering, Korea University)
  • 강성용 (고려대학교 컴퓨터.전파통신공학과) ;
  • 정지채 (고려대학교 컴퓨터.전파통신공학과)
  • Published : 2010.01.31

Abstract

In this paper, we presented a signal model of STAP and actual environment of clutter. The novel estimation method of clutter covariance matrix using median value is proposed to overcome serious performance degradation after NHD in nonhomogeneous clutter. Eigen value characteristic is improved through diagonal loading. Target detection ability and SINR loss of the proposed method though MSMI statistic is also compared with conventional method using average value. The simulation results, confirm the proposed method has better performance than others.

Keywords

STAP;Nonhomogeneous Clutter;NHD;Median Value;Estimation of Clutter Covariance Matrix

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