Multichannel radar adaptive signal detection in interference and structure nonhomogeneity

查看全文 作　　者：Weijian [1]LIU;Hui [2]HAN;Jun [3,4]LIU;Hongli [1]LI;Kai [5]LI;Yong-Liang [1]WANG

机构地区：[1]Air Force Early Warning Academy;[2]State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System;[3]National Laboratory of Radar Signal Processing, Xidian University;[4]Collaborative Innovation Center of Information Sensing and Understanding, Xidian University;[5]School of Electronic Information, Wuhan University

出　　处：《Science China(Information Sciences)》索引2017年第60卷第11期,共14页

基　　金：supported by National Natural Science Foundation of China (Grant Nos. 61501505, 61501351) 摘　　要：In this paper, we consider the problem of multichannel radar signal detection in interference and structure nonhomogeneity. The interference is often caused by electromagnetic countermeasure(ECM) systems or industrial activity, while the nonhomogeneity usually arises because of rapid variations in terrain or radar antenna structure. We propose three adaptive detectors according to three common criteria of detector design, namely, the generalized likelihood ratio test(GLRT), Rao test, and Wald test. Extensive performance comparisons are conducted under different scenarios. It is shown that when the nonhomogeneity is severe, the detector devised according to the GLRT achieves the best detection performance. In other scenarios, the detector designed according to the Wald test may be the best choice, which has the highest probability of detection. 关键词：雷达信号检测自适应干扰非均质性天线结构多通道广义似然比检验自适应检测器 GLRT

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Multichannel radar adaptive signal detection in interference and structure nonhomogeneity

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