刘畅1, 2,
刘文龙1,
金明录1,,
1.大连理工大学信息与通信工程学院 ??大连 ??116024
2.电子科技大学通信与信息工程学院 ??成都 ??611731
基金项目:国家自然科学基金(61401059)
详细信息
作者简介:赵文静:女,1990年生,博士生,研究方向为信息几何及雷达目标检测
刘畅:男,1988年生,博士生,研究方向为认知无线电频谱感知技术、统计信号处理、随机矩阵理论等
刘文龙:男,1973年生,教授,博士生导师,主要研究方向为MIMO及SM系统检测问题等
金明录:男,1958年生,教授,博士生导师,主要研究方向为信号与通信系统基础理论与技术
通讯作者:金明录 mljin@dlut.edu.cn
中图分类号:TN957.51计量
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被引次数:0
出版历程
收稿日期:2017-11-20
修回日期:2018-05-21
网络出版日期:2018-07-12
刊出日期:2018-09-01
Maximum Eigenvalue Based Radar Signal Detection Method for K Distribution Sea Clutter Environment
Wenjing ZHAO1,Chang LIU1, 2,
Wenlong LIU1,
Minglu JIN1,,
1. School of Information and Communication Engineering, Dalian University of Technology, Dalian 116024, China
2. School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Funds:The National Natural Science Foundation of China (61401059)
摘要
摘要:针对K分布海杂波背景下的恒虚警检测问题,基于信息几何的矩阵CFAR检测器具有较好的检测性能,但其计算复杂度较高,从而影响其实际应用。该文根据奈曼-皮尔逊准则,推导了似然比检测统计量与最大特征值之间的关系,进而提出了基于最大特征值的矩阵CFAR检测方法(M-MED)。最后通过对所提方法的计算复杂度及仿真实验结果的分析表明了所提方法不仅计算复杂度低且具有较好的检测性能。
关键词:恒虚警检测/
K分布/
最大特征值
Abstract:Information geometry based matrix Constant False Alarm Rate (CFAR) detector is an efficient solution to the intractable issue of target detection for K-distributed sea clutter environment. However, most existing matrix CFAR detectors cost heavy computation complexity, which leads to a limitation in practical application. Based on the Neyman-Pearson criterion, the Likelihood Ratio Test (LRT) is analyzed, the relationship between LRT statistic and the Maximum Eigenvalue is derived, and Matrix CFAR Detection method based on the Maximum Eigenvalue (M-MED) is designed. Simulation results verify that the proposed method can achieve better detection performance with relatively lower computational complexity.
Key words:CFAR detection/
K-distribution/
Maximum eigenvalue
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