Adaptive persymmetric detector of generalised likelihood ratio test in homogeneous environment

作者：Jian, Tao^*; He, You^*; Liao, Guisheng; Guan, Jian; Dong, Yunlong

来源：IET Signal Processing, 2016, 10(2): 91-99.

DOI：10.1049/iet-spr.2015.0200

• COMPOUND-GAUSSIAN CLUTTER
• SUBSPACE SIGNAL-DETECTION
• MATCHED-FILTER
• COVARIANCE MATRICES
• AIRBORNE RADAR
• GLRT
• ALGORITHM
• RAO

Adaptive detection of radar target embedded in homogeneous Gaussian disturbance is addressed, by exploiting the persymmetric covariance matrix. On the basis of the decision schemes of generalised likelihood ratio test (GLRT), an adaptive persymmetric detector with constant false alarm rate property is designed, which can mitigate the demanding requirement of secondary data. Furthermore, the expressions for the probabilities of the false alarm and detection are derived, and the validity of them is confirmed by Monte Carlo simulations. The assessment results show that the proposed detector outperforms the conventional unstructured GLRT, the structured persymmetric adaptive matched filter and the persymmetric Rao detector, especially in the training-deficient scenarios.

• 出版日期2016-4
• 单位中国人民解放军海军航空工程学院; 西安电子科技大学