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应用科学学报 >

2014 , Vol. 32 >Issue 1: 57 - 64

DOI: https://doi.org/10.3969/j.issn.0255-8297.2014.01.010

信号与信息处理

L 型阵列双基地MIMO 雷达的传播算子多维角度估计

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  • 南京航空航天大学电子工程系，南京210016
张小飞，教授，博导，研究方向：阵列信号处理，E-mail: zhangxiaofei@nuaa.edu.cn

收稿日期: 2011-04-26

  修回日期: 2012-08-04

  网络出版日期: 2012-08-04

基金资助

国家自然科学基金(No.61371169)；航空科学基金(No.2009ZC52036)；南京航空航天科研基金(No.NS2013024)；南京航空航天
大学研究生创新基地实验室(No.kfjj130114)资助

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Multi-dimensional Angle Estimation in Bistatic MIMO Radar for L-Shaped Array with Propagator Method

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  • Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received date: 2011-04-26

  Revised date: 2012-08-04

  Online published: 2012-08-04

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摘要

针对空间谱估计算法复杂度高的问题，引入传播算子用于双基地多输入多输出雷达的二维离开角和二维到达角估计. 通过信号协方差矩阵求出传播算子，利用传播算子的旋转不变性估计方向矩阵，进而计算离开角和到达角. 该算法运算复杂度低，能实现多维角度的自动配对，且在相近角度情况下仍能保持良好的性能. 在高信噪比情况下，算法性能接近ESPRIT. 此外还推导了角度估计均方误差. 仿真结果表明了该算法的有效性.

关键词： 多输入多输出雷达; 离开角; 到达角; 自动配对; 传播算子算法

本文引用格式

孙中伟， 张小飞， 吴海浪， 李建峰 . L 型阵列双基地MIMO 雷达的传播算子多维角度估计[J]. 应用科学学报, 2014 , 32(1) : 57 -64 . DOI: 10.3969/j.issn.0255-8297.2014.01.010

Abstract

 Computation complexity of spatial spectrum estimation algorithm is high. To solve this problem,a PM algorithm is introduced for estimation of 2D direction of departure (DOD) and 2D direction of arrival (DOA) for bistatic MIMO radar. A propagator is estimated using the cross correlation matrix. By rotationinvariance
of the propagator, one can estimate the direction of the matrix, and further estimate DOD and DOA. The algorithm has low computation complexity, and can achieve multi-dimensional automatic pairing. With similar angles, good performance is still maintained. In the case of high SNR, performance of the proposed algorithm is close to that of the ESPRIT. Mean square error of angle estimation is derived. Simulation results verify the usefulness of the algorithm.

Key words： multiple-input multiple-output (MIMO) radar; direction of departure (DOD); direction of arrival (DOA); automatic pairing; propagator method

参考文献

[1] FISHLER E, HAIMOVICH A, BLUM R S, CIMINI L J, CHIZHIK D, VALENZUELA R A. MIMO radar: an idea whose time has come [C] // Proceedings of IEEE Radar Conference, Apr. 2004: 71-78.

[2] LI Xiangru. ZHAO Zhang, WU Xingmao, WANG Xiaomo, LU Jun, WANG Wensheng. A study of frequency diversity MIMO radar beam forming [C]// 2010 IEEE 10th International Conference on Signal Processing (ICSP), 2010: 352-356.

[3] SHARMA R. Analysis of MIMO radar ambiguity functions and implications on clear region [C]//2010 IEEE International Radar Conference, 2010: 544-548.

[4] ROBERTS W, LI J, STOICA P, YARDIBI T, SADJADI F A. MIMO radar angle-range-Doppler imaging [C]//2009 IEEE International Radar Conference :, 2009, 5: 1-6.

[5] WU X H, KISHK A A, GLISSON A W. MIMO-OFDM radar for direction estimation [J]. IET Radar, Sonar & Navigation, 2010, 4(1): 28-36.

[6] ZHANG Xiaofei. XU Linyun, XU Lei, XU Dazhuan. Direction of departure (DOD) and direction of arrival (DOA) estimation in MIMO radar with reduced-dimension MUSIC [J]. IEEE Communications Letters, 2010, 14(12): 1161-1163.

[7] ZHANG Xiaofei, XU Dazhuan. Angle estimation in MIMO radar using reduced-dimension capon [J]. IET Electronics Letters, 2010, 46 (12): 860-861.

[8] CHEN Jinli, GU Hong, SU Weimin. Angle estimation using ESPRIT without pairing in MIMO radar [J]. Electronics letters, 2008, 44(20): 1422-1423.

[9] MARCOS S, MARSAL A, BENIDIR M. The propagator method for source bearing estimation[J]. Signal Processing, 1995, 42(2): 121-138.

[10] 陈金力，顾红，苏卫民. 一种双基地MIMO雷达快速多目标定位方法 [J].电子与信息学报，2009, 31(7): 1664-1668.

CHEN Jinli, GU Hong, SU Weimin. A method for fast multi-target localization in bistatic MIMO radar system [J]. Journal of Electronics & Information Technology, 2009, 31(7): 1664-1668. (in Chinese)

[11] ZHANG Xiaofei, GAO Xin, XU Dazhuan. Multi-invariance ESPRIT-based blind DOA estimation for MC-CDMA with an antenna array [J]. IEEE Transactions on Vehicular Technology, 2009, 58(8): 4686-4690.

[12] STOICA P, NEHORAI A. Performance study of conditional and unconditional direction-of-arrival estimation [J].  IEEE Transactions Signal Process, 1990, 38(10): 1783-1795.
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