米波MIMO雷达低空目标波达方向估计新方法

刘源; 王洪先; 纠博; 严俊坤; 赵永波; 刘宏伟

doi:10.11999/JEIT150555

米波MIMO雷达低空目标波达方向估计新方法

doi: 10.11999/JEIT150555

基金项目:

国家自然科学基金(61271291, 61201285)，中央高校基本科研业务费专项资金

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- 被引次数: 0
出版历程
- 收稿日期: 2015-05-11
- 修回日期: 2015-11-20
- 刊出日期: 2016-03-19

A New Method for DOA Estimation for VHF MIMO Radar in Low-angle Tracking Environment

Funds:

The National Natural Science Foundation of China (61271291, 61201285), Fundamental Research Funds for the Central Universities

摘要

摘要: 针对米波多输入多输出(Multiple Input Multiple Output, MIMO)雷达在反射面高度未知情况下对低空目标测角困难的问题，该文提出一种基于缩放字典的目标仰角估计算法。该算法不依赖反射面高度信息，在同时考虑发射多径和接收多径的情况下，通过构造包含目标参数的自适应字典，以最大化匹配滤波输出的回波数据与字典原子相关系数为估计准则，利用缩放字典逐层逼近的方法交替完成对目标参数的估计和对参数化字典的更新，最终实现了对目标仰角及高度的估计。仿真实验表明了该算法的有效性。
- MIMO雷达 /
- 低角跟踪 /
- 多径效应 /
- 参数估计 /
- 缩放字典
Abstract: The issue of Direction-Of-Arrival (DOA) estimation in low-angle tracking environment for Very High Frequency (VHF) MIMO radar is investigated in this paper. Under the condition of the reflecting surface height is unknown, an algorithm for the target elevation estimation is proposed. The algorithm is based on the criterion of maximizing the correlation coefficient of target echo and the atoms of a given dictionary, where the dictionary grids can be iteratively refined to estimate the parameters more precisely. The simulation results indicate the effectiveness of the algorithm.
- MIMO radar /
- Low-angle tracking /
- Multi-path effect /
- Parameter estimation /
- Dictionary refinement

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参考文献(23)

XU Z H, WU J N, XIONG Z Y, et al. Low-angle tracking algorithm using polarization sensitive array for very-high frequency radar[J]. IET Radar Sonar Navigation, 2014, 8(9): 1035-1041.

PARK D M, YANG E J, AHN S, et al. Adaptive beamforming for low-angle target tracking under multipath interference[J]. IEEE Transactions on Aerospace and Electronic Systems, 2014, 50(4): 2564-2577.

张文俊, 赵永波, 张守宏. 广义MUSIC算法在米波雷达测高中的应用及其改进[J]. 电子与信息学报, 2007, 29(2): 387-390.

ZHANG Wenjun, ZHAO Yongbo, and ZHANG Shouhong. Altitude measurement of meter-wave radar using the general MUSIC algorithm and its improvement[J]. Journal of Electronics Information Technology, 2007, 29(2): 387-390.

赵光辉, 陈伯孝, 董玫. 基于交替投影的DOA估计方法及其在米波雷达中的应用[J]. 电子与信息学报, 2008, 30(1): 224-227.

ZHAO Guanghui, CHEN Baixiao, and DONG Mei. A new DOA estimator based on alternating projection and its application in VHF radar[J]. Journal of Electronics Information Technology, 2008, 30(1): 224-227.

胡晓琴, 陈建文, 王永良. 米波雷达测高多径模型研究[J]. 电波科学学报, 2008, 23(4): 651-657.

HU Xiaoqin, CHEN Jianwen, and WANG Yongliang. Research on meter-wave radar height-finding multipath model[J]. Chinese Journal of Radio Science, 2008, 23(4): 651-657.

SEBT M A, SHEIKHI A, and NAYEBI M M. Robust low-angle estimation by an array radar[J]. IET Radar Sonar Navigation, 2010, 4(6): 780-790.

WHITE W D. Low-angle radar tracking in the presence of multipath[J]. IEEE Transactions on Aerospace and Electronic Systems, 1974, 11(6): 835-852.

SHERMAN S M. Complex indicated abgles applied to unresolved radar targets and multipath[J]. IEEE Transactions on Aerospace and Electronic Systems, 1971, 1(7): 160-170.

吴向东, 赵永波, 张守宏, 等. 一种MIMO雷达低角跟踪环境下的波达方向估计新方法. 西安电子科技大学学报, 2008, 35(5): 793-798.

WU Xiangdong, ZHAO Yongbo, ZHANG Shouhong, et al. New method for DOA estimation for the MIMO radar in low-angle tracking environment[J]. Journal of Xidian University, 2008, 35(5): 793-798.

HASSANIEN A, VOROBYOV S A, and KHABBAZIBASMENJ A. Transmit radiation pattern invariance in MIMO radar with application to DOA estimation[J]. IEEE Signal Processing Letters, 2015, 22(10): 1609-1613.

刘俊, 刘峥, 谢荣, 等. 基于波束空间的米波MIMO雷达角度估计算法[J]. 电子学报, 2011, 39(9): 1961-1966.

LIU Jun, LIU Zheng, XIE Rong, et al. Beam-pace domain angle estimation algorithm in VHF MIMO radar[J]. Acta Electronica Sinica, 2011, 39(9): 1961-1966.

SHAN T J, WAX M, and KAILATH T. On spatial smoothing for direction-on-arrival estimation of coherent signal[J]. IEEE Transactions on Aerospace and Speech Signal Processing, 1985, 33(4): 806-811.

赵永波, 张守宏. 雷达低角跟踪环境下的最大似然波达方向估计方法[J]. 电子学报, 2004, 32(9): 1520-1523.

ZHAO Yongbo and ZHANG Shouhong. Maximum likelihood DOA estimation in radar low-angle tracking environment[J]. Acta Electronica Sinica, 2004, 32(9): 1520-1523.

QU L, SUN Q, YANG T, et al. Time-delay estimation for ground penetrating radar using ESPRIT with improved spatial smoothing technique[J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(8): 1315-1319.

SEN S and NEHORAI A. OFDM MIMO radar with mutual- information waveform design for low-grazing angle tracking[J]. IEEE Transactions on Signal Processing, 2010, 58(6): 3152-3162.

WANG S H, CAO Y H, and SU H T. Joint estimation of the target height and the reflecting surface height in low angle radar[C]. IEEE International Conference on Signal Processing(ICSP), Hangzhou, 2014: 19-23.

XU D L, DU L, and LIU H W. Radar signal parameter estimation with spares Bayesian representation based on dictionary refinement[C]. IEEE International Conference on Computer and Information Technology(CIT), Xian, 2014: 123-128.

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