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http://dx.doi.org/10.5515/KJKIEES.2010.21.1.020

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

Kang, Sung-Yong (Department of Computer and Radio Communication Engineering, Korea University)
Jeong, Ji-Chai (Department of Computer and Radio Communication Engineering, Korea University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.21, no.1, 2010 , pp. 20-27 More about this Journal
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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