Direction finding via biquaternion matrix diagonalization with vector-sensors
Direction finding via biquaternion matrix diagonalization with vector-sensors
复制标题
使用矢量传感器通过双四元数矩阵对角化进行测向
DOI：
10.1016/j.sigpro.2010.08.015
复制
发表时间：
2011-04-01
影响因子：
4.4
通讯作者：
Xu, You-Gen
中科院分区：
文献类型：
--
作者：
Gong, Xiao-Feng;Liu, Zhi-Wen;Xu, You-Gen
在双四元数框架下，研究了基于三分量电磁矢量传感器阵列的波达方向估计问题。建立了双四元数协方差与复数协方差和叉积的组合之间的关系。利用这种关系，通过对角化阵列输出的双四元数协方差矩阵，以三线性PARAFAC的方式最终得到DOA估计。该方法不需要每个传感器位置的任何先验知识，对有色噪声具有很强的稳健性，可用于非线性极化信号的测向。仿真结果表明了该方法的有效性。(C)2010爱思唯尔B.V.保留所有权利。
Direction-of-arrival (DOA) estimation based on the array of three-component electromagnetic vector-sensors is considered within a biquaternion framework. A relationship is established between the biquaternion covariance and the combination of both complex covariance and cross-product. By exploiting this relationship, the DOA estimates can finally be obtained by diagonalizing the biquaternion covariance matrix of the array outputs in a trilinear PARAFAC manner. This method does not require any a priori knowledge on the position of each sensor, and is shown to offer high robustness to colored noise for direction finding of non-linearly polarized signals. Simulations are provided to illustrate the performance of the proposed method. (C) 2010 Elsevier B.V. All rights reserved.