张剑云,
周青松
国防科技大学电子对抗学院 ??合肥 ??230037
基金项目:国家自然科学基金(61671453, 61201379)，安徽省自然科学基金(1608085MF123)
详细信息
作者简介:张正言：男，1991年生，博士生，研究方向为阵列信号处理、MIMO雷达信号处理
张剑云：男，1963年生，教授，博士生导师，主要研究方向为雷达及目标环境模拟、雷达信号处理、高速信号处理
周青松：男，1983年生，博士，讲师，主要研究方向为阵列信号处理和雷达信号处理
通讯作者:张正言 zzyaisj@163.com
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出版历程
收稿日期:2017-12-14
修回日期:2018-06-20
网络出版日期:2018-07-30
刊出日期:2018-10-01
Study on Multi-target Angle Tracking Algorithm of Bistatic MIMO Radar with Unknown Target Number
Zhengyan ZHANG,,Jianyun ZHANG,
Qingsong ZHOU
National University of Defense Technology, Hefei 230037, China
Funds:The National Natural Science Foundation of China (61671453, 61201379), The Natural Science Foundation of Anhui Province (1608085MF123)
摘要
摘要:针对目标个数未知时双基地MIMO雷达角度跟踪问题，该文提出一种基于改进自适应非对称联合对角化(AAJD)的目标个数与角度联合跟踪算法。AAJD算法中无法得到特征值变量，因此改进AAJD算法引入主成分顺序估计思想，循环求出特征值，然后运用改进信息论准则估计出目标个数。其次提出目标个数防抖动算法，提高了稳健性。最后改进了ESPRIT算法，完成了目标参数的自动配对和关联。仿真结果表明改进AAJD算法能够成功跟踪目标个数和角度，验证了理论分析的有效性。
关键词:双基地MIMO雷达/
角度跟踪/
目标个数跟踪/
自动关联与配对
Abstract:In order to solve the angle tracking problem of bistatic MIMO radar when the number of target is unknown, a joint tracking algorithm of the number of target and the angle is proposed. There is no variable in Adaptive Asymmetric Joint Diagonalization (AAJD) algorithm that can directly represent the eigenvalue. Therefore, the idea of principal component sequence estimation is introduced to the improved AAJD algorithm, and the eigenvalues are iteratively evaluated. Then, the number of target is estimated by using the improved information theory. Secondly, the anti-dithering algorithm of target number is proposed, which improves the robustness of the algorithm. Finally, the ESPRIT algorithm is improved to realize the automatic matching and association of DOD and DOA. The simulation results show that the improved AAJD algorithm can successfully track the number of target and angle trajectories. The efficiency of the proposed method is verified.
Key words:Bistatic MIMO radar/
Angle tracking/
Target number tracking/
Automatic matching and association
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