MIMO双基地雷达多目标角度-多普勒频率联合估计

J4 ›› 2011, Vol. 38 ›› Issue (1): 16-21.

MIMO双基地雷达多目标角度-多普勒频率联合估计

张永顺¹;牛新亮¹;赵国庆¹;郭艺夺²

(1. 西安电子科技大学电子信息攻防对抗与仿真重点实验室，陕西西安 710071；
2. 空军工程大学导弹学院，陕西三原 713800)

收稿日期:2009-12-16 出版日期:2011-02-20 发布日期:2011-04-08
作者简介:张永顺(1961-)，男，研究员，E-mail: yszh@xidian.edu.cn．
基金资助:
国家自然科学基金资助项目(60601016)

Joint estimation of multi-targets angles-Doppler frequencies for the MIMO bistatic radar

ZHANG Yongshun¹;NIU Xinliang¹;ZHAO Guoqing¹;GUO Yiduo²

(1. Key Lab. of Electronic Information EW and Simulation, Xidian Univ., Xi'an 710071， China;
2. Missile Institute of Air Force Engineering Univ., Sanyuan 713800， China)

Received:2009-12-16 Online:2011-02-20 Published:2011-04-08

摘要/Abstract

摘要：

为了实现无同步双基地雷达多目标参数估计，建立了多输入多输出(MIMO)双基地雷达多目标信号处理模型，提出了一种多目标角度-多普勒频率联合估计算法．该算法首先对MIMO接收机输出的虚拟阵列多目标回波数据进行解相干处理，然后基于传播算子，构造特殊矩阵．通过特征参数与待测参数之间的对应关系，实现了多目标发射角、接收角和双基多普勒频率的联合估计．该算法不涉及多维非线性谱峰搜索，只需一次特征值分解，且估计出的参数可自动配对．仿真结果证明了所提算法的正确性和有效性．

关键词: 双基地雷达, MIMO雷达, 多参数估计, 目标定位

Abstract:

In order to implement the multi-parameter estimation for the bistatic radar without any synchronization,a multi-targets signal model of the MIMO bistatic radar is set up and a joint angles-Doppler frequencies estimation algorithm for multi-targets is proposed. In the algorithm, the virtual array data of multitarget echoes in MIMO receivers is first uncorrelated, then a special matrix based on the propagation operator constructed, and finally the joint estimation of the DODs, DOAs and Doppler frequencies can be obtained by the corresponding relationships between the eigenvalue or eigenvector and the estimated parameters. The proposed algorithm does not need the multi-dimensional nonlinear peak search, and only needs an eigenvalue decomposition, and the estimated parameters of the targets can be paired automatically. The correctness and effectiveness of the proposed method are verified with computer simulation.

Key words: bistatic radar, MIMO radar, multi-parameters estimation, targets localization

张永顺;牛新亮;赵国庆;郭艺夺. MIMO双基地雷达多目标角度-多普勒频率联合估计[J]. J4, 2011, 38(1): 16-21.

ZHANG Yongshun;NIU Xinliang;ZHAO Guoqing;GUO Yiduo. Joint estimation of multi-targets angles-Doppler frequencies for the MIMO bistatic radar[J]. J4, 2011, 38(1): 16-21.

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