王传宇
哈尔滨工程大学信息与通信工程学院 ??哈尔滨 ??150001
基金项目:国家自然科学基金(61571146)，中央高校基本科研业务费专项资金(HEUCFP201769)
详细信息
作者简介:刘鲁涛：男，1977年生，副教授，博士生导师，研究方向为宽带信号处理、检测与识别
王传宇：男，1993年生，硕士生，研究方向为宽带信号检测、DOA
通讯作者:刘鲁涛 huangxiangsong@hrbeu.edu.cn
中图分类号:TN971计量
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被引次数:0
出版历程
收稿日期:2018-08-24
修回日期:2019-02-12
网络出版日期:2019-03-13
刊出日期:2019-10-01
Two Dimensional DOA Estimation Based on Polarization Sensitive Array and Uniform Linear Array
Lutao LIU,,Chuanyu WANG
College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
Funds:The National Natural Science Foundation of China (61571146), The Fundamental Research Funds for the Central Universities (HEUCFP201769)
摘要
摘要:针对残缺电磁矢量传感器的极化敏感阵列多参数联合估计问题，该文提出一种基于正交偶极子的均匀线阵的2维波达方向(Direction-Of-Arrival, DOA)估计算法。首先，对极化敏感阵列的接收数据矢量的协方差矩阵进行特征分解，然后将信号子空间划分成4个子阵，根据旋转不变子空间(ESPRIT)算法分别求出其中1个子阵与其它3个子阵的相位差，再对不同子阵间的相位差进行配对，最后根据相位差求出信号的DOA估计和极化参数。由正交偶极子组成的均匀线阵使用极化MUSIC算法和传统ESPRIT算法无法进行2维DOA估计，该文提出的算法解决了这个问题，并且相较于极化MUISC算法降低了算法的复杂度。仿真结果验证了该文算法的有效性。
关键词:信号处理/
DOA估计/
极化敏感阵列/
正交偶极子/
均匀线阵
Abstract:To solve the problem that polarization sensitive array of defective electromagnetic vector sensor estimate multi parameter, a two-dimensional DOA estimation algorithm based on orthogonal dipole is proposed in this paper. First, eigendecomposition of the covariance matrix is produced by the received data vectors of the polarization sensitive array. Then the signal subspace is divided into four subarrays, and the phase difference between one of the subarray and the others is obtained according to the ESPRIT algorithm. Then the phase difference between different subarrays is paired. Finally, the DOA estimation and polarization parameters of the signal are calculated according to the phase difference. The uniform linear array composed by orthogonal dipoles can not be two-dimensional DOA estimated by using the MUSIC algorithm and the traditional ESPRIT algorithm. The algorithm proposed in this paper solves this problem, and compared with the polarization MUISC algorithm greatly reduces the complexity of the algorithm. The simulation results verify the effectiveness of the proposed algorithm.
Key words:Signal processing/
Direction Of Arrival (DOA) estimation/
Polarization sensitive array/
Orthogonal dipole/
Uniform linear array
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