极化敏感阵列取向误差校正

doi:10.13229/j.cnki.jdxbgxb201606044

摘要/Abstract

摘要： 针对实际应用的场合中阵元存在取向误差而必须校正的问题,本文基于极化敏感阵列的到达角(DOA)和极化参数估计算法提出了Taylor近似迭代估计方法,即对阵元进行多次一阶Taylor展开估计校正,得到阵列取向误差矩阵。仿真结果表明:该方法得到的校正矩阵对数据校正后DOA和极化参数估计值与信号真实值吻合得很好。

关键词: 通信技术, 极化敏感阵列, 取向误差, 空间到达角, 校正

Abstract: Most existing Direction-of-arrival (DOA) and polarization estimation methods, which are based on polarization sensitive array, generally assume that array element orient the referenced Cartesian coordinates strictly, that is no misorientation. However, in practical applications array elements have misorientations, and it is necessary to calibrate the misorientations. To solve this problem, a Taylor approximate expansion iterative method is proposed. It uses the first-order Taylor approximate expansion to calibrate the array elements repeatedly to get the array's misorientation matrix. The simulation results show that the estimation of DOA and polarization are quite close to the true values by using the proposed method.

Key words: communication, polarization sensitive array, misorientation, direction-of-arrival, calibration

中图分类号:

TN911

窦慧晶, 郭彩环, 张少飞, 张雪. 极化敏感阵列取向误差校正[J]. 吉林大学学报(工学版), 2016, 46(6): 2087-2093.

DOU Hui-jing, GUO Cai-huan, ZHANG Shao-fei, ZHANG Xue. Study on misorientation calibration of polarization sensitive arrays[J]. 吉林大学学报(工学版), 2016, 46(6): 2087-2093.

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