基于共形阵的角度和极化信息联合估计算法

doi:10.12305/j.issn.1001-506X.2022.06.05

系统工程与电子技术 ›› 2022, Vol. 44 ›› Issue (6): 1798-1804.doi: 10.12305/j.issn.1001-506X.2022.06.05

基于共形阵的角度和极化信息联合估计算法

曲志昱^1,², 孙萌^1,^2,*, 戴幻尧³

1. 哈尔滨工程大学信息与通信工程学院, 黑龙江哈尔滨 150001
2. 先进船舶通信与信息技术工业和信息化部重点实验室, 黑龙江哈尔滨 150001
3. 中国洛阳电子装备试验中心, 河南洛阳 471003

收稿日期:2021-06-15 出版日期:2022-05-30 发布日期:2022-05-30
通讯作者: 孙萌
作者简介:曲志昱(1983-), 女, 副教授, 博士, 主要研究方向为宽带信号检测、处理与识别|孙萌(1997-), 男, 硕士研究生, 主要研究方向为信号检测、阵列信号处理|戴幻尧(1982-), 男, 博士, 主要研究方向为电子信息系统仿真与评估、雷达信号处理
基金资助:
国家自然科学基金(61801143);国家自然科学基金(61971155)

Joint estimation algorithm of DOA and polarization information based on conformal array

Zhiyu QU^1,², Meng SUN^1,^2,*, Huanyao DAI³

1. College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
2. Key Laboratory of Advanced Marine Communication and Information Technology, Ministry of Industry and Information Technology, Harbin 150001, China
3. Luoyang Electrical Equipment Testing Center of China, Luoyang 471003, China

Received:2021-06-15 Online:2022-05-30 Published:2022-05-30
Contact: Meng SUN

摘要/Abstract

摘要：

针对复杂载体上共形阵列存在多极化接收和遮挡效应的问题, 本文提出一种基于方向图矩阵重构导向矢量的改进极化多重信号分类(multiple signal classification, MUSIC)算法。首先对共形天线阵列进行建模, 在获取各个阵元的方位和俯仰分量方向图数据后, 将方向图数据分解并重构阵列的导向矢量矩阵, 最后结合极化MUSIC算法进行波达方向(direction of arrival, DOA)和极化参数联合估计。相对于理论导向矢量的极化MUSIC算法, 本文所提改进算法在解决了遮挡效应的同时具有更高的估计精度, 并可有效降低运算量。仿真实验结果验证了这一结论。

关键词: 共形阵列, 波达方向估计, 极化多重信号分类算法, 天线方向图, 矩阵重构

Abstract:

Aiming at the problem of multi-polarization reception and occlusion effects of conformal arrays on complex carriers, this paper proposes an improved polarization multiple signal classification (MUSIC) algorithm based on the pattern matrix reconstruction steering vector. First, we model the conformal antenna array. Then, after the azimuth and elevation component pattern data of each element are obtained, the pattern data is decomposed and reconstructed to the steering vector matrix of the array. Finally, we estimate the direction of arrival (DOA) and polarization parameters by the polarization MUSIC algorithm. Compared with the polarization MUSIC algorithm based on the theoretical steering vector, the improved algorithm proposed in this paper has higher estimation accuracy while avoiding the occlusion effect. It also can reduce the amount of calculation. The conclusion is verified by simulation experiments.

Key words: conformal array, direction of arrival (DOA) estimation, polarization multiple signal classification (MUSIC) algorithm, antenna pattern, matrix reconstruction

中图分类号:

TN971

曲志昱, 孙萌, 戴幻尧. 基于共形阵的角度和极化信息联合估计算法[J]. 系统工程与电子技术, 2022, 44(6): 1798-1804.

Zhiyu QU, Meng SUN, Huanyao DAI. Joint estimation algorithm of DOA and polarization information based on conformal array[J]. Systems Engineering and Electronics, 2022, 44(6): 1798-1804.

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基于共形阵的角度和极化信息联合估计算法

Joint estimation algorithm of DOA and polarization information based on conformal array

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