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Adaptive persymmetric detector of generalised likelihood ratio test in homogeneous environment

机译:均匀环境下广义似然比测试的自适应超对称检测器

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摘要

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.
机译:通过利用全对称协方差矩阵,解决了嵌入均匀高斯扰动的雷达目标的自适应检测问题。基于广义似然比检验(GLRT)的决策方案,设计了具有恒定误报率特性的自适应对称传感器,可以减轻对二次数据的苛刻要求。此外,推导了虚假警报和检测概率的表达式,并通过蒙特卡洛模拟验证了它们的有效性。评估结果表明,所提出的检测器优于传统的非结构化GLRT,结构化的对称对称匹配滤波器和对称的Rao检测器,尤其是在训练不足的情况下。

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