Journal of Xidian University ›› 2020, Vol. 47 ›› Issue (3): 23-31.doi: 10.19665/j.issn1001-2400.2020.03.004

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Detection of the airborne MIMO radar moving target in the non-Gaussian clutter

ZHANG Yanfei1,SUN Wenjie1(),SUN Yumei1,MENG Xiangwei1,2,CHEN Xiangguang1,3   

  1. 1. Department of Elecrical and Electronic Engineering, Yantai Nanshan University, Yantai 265713, China
    2. Department of Electronic and information Engineering, Naval Aeronautical and Astronautical University,Yantai 264001, China
    3. School of Chemical Engineering and Environment,Beijing Institute of Technology,Beijing 100081,China
  • Received:2019-07-08 Online:2020-06-20 Published:2020-06-19
  • Contact: Wenjie SUN E-mail:452725737@qq.com

Abstract:

Due to the moving platforms, the clutters in distributed airborne MIMO radar are non-Gaussian and non-homogeneous, which leads to having no independent and identically distributed training data to estimate the clutter covariance matrix. To solve the problem, we propose that the covariance of the clutter should be modeled as an inverse complex Wishart distribution whose average value is a Hadamard product of the covariance matrix taper (CMT) and the clutter Doppler spectrum component. Based on this clutter model, a novel detector combing the Bayesian approach and the generalized likelihood ratio test(GLRT) is proposed. Numerical simulation results show that the proposed detector has a better detection performance compared with two current commonly used non-Bayesian detectors.

Key words: multi-input multi-output radar, moving target detection, generalized likelihood ratio test, Bayesian approach, inverse complex Wishart distributionn

CLC Number: 

  • TN957.51