Page 135 - 《应用声学》2025年第3期

第 44 卷 第 3 期 Vol. 44, No. 3
2025 年 5 月 Journal of Applied Acoustics May, 2025

⋄ 研究论文 ⋄

一种基于虚元内插法的矢量互质阵测向

干扰抑制方法 ∗

修明明 1,2,3 吕云飞 1,2,3† 梅继丹 1,2,3 卢明洋 1,2,3 王书昌 4

(1 哈尔滨工程大学 水声技术全国重点实验室 哈尔滨 150001)

(2 海洋信息获取与安全工信部重点实验室 (哈尔滨工程大学) 工业和信息化部 哈尔滨 150001)
(3 哈尔滨工程大学 水声工程学院 哈尔滨 150001)
(4 中国船舶集团有限公司第七一九研究所 武汉 100084)
摘要：矢量互质阵是一种能分辨左右舷、成本较低且方位分辨力较好的稀疏阵，但方位估计时会产生高旁瓣干
扰和方位模糊。利用时延求和虚元内插可以改善有关问题，该文提出一种基于虚元内插法的互质阵波束形成
方法，首先仿真分析产生测向干扰的原因，其次通过仿真模拟和海试数据处理获得方位历程结果，验证新方法
的可行性和实用性。结果表明：新方法能够抑制上述测向干扰，改善矢量互质阵测向性能。
关键词：矢量阵；互质阵；波束形成；虚元内插
中图法分类号: TB566 文献标识码: A 文章编号: 1000-310X(2025)03-0669-08
DOI: 10.11684/j.issn.1000-310X.2025.03.015

A direction finding interference suppression method for vector coprime array

based on virtual element interpolation method

XIU Mingming 1,2,3 , LYU Yunfei 1,2,3 , MEI Jidan 1,2,3 , LU Mingyang 1,2,3 and WANG Shuchang 4

(1 National Key Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, China)
(2 Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University),
Ministry of Industry and Information Technology, Harbin 150001, China)
(3 College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China)
(4 Wuhan Second Ship Design Institute, Wuhan 100084, China)

Abstract: Vector coprime array is a sparse array with low cost and good azimuth resolution, it can distinguish
the starboard side. However, high side lobe interference and azimuth ambiguity can be generated when it
estimates the target orientation. The problem can be improved by using delay summation virtual element
interpolation. In this paper, a method of beamforming for coprime array based on virtual element interpolation
is proposed. Firstly, the causes of direction-finding interference are simulated and analyzed. Secondly, the
results of bearing time record are obtained through simulation and sea test data processing to verify the
feasibility and practicability of the new method. The results show that the new method can suppress the
direction-finding interference and improve the direction-finding performance of vector coprime array.
Keywords: Vector array; Coprime array; Beamforming; Virtual element interpolation

2023-11-19 收稿; 2024-03-07 定稿
科技创新特区项目 (22-TQ02-15-Z-01-001-01)
∗
作者简介: 修明明 (1999– ), 女, 黑龙江哈尔滨人, 硕士研究生, 研究方向: 水声信号与信息处理。
† 通信作者 E-mail: lvyunfei@hrbeu.edu.cn