基于分裂阵配置的旁瓣抑制方法

doi:10.3969/j.issn.0372-2112.2019.06.029

电子学报 ›› 2019, Vol. 47 ›› Issue (6): 1388-1392.DOI: 10.3969/j.issn.0372-2112.2019.06.029

基于分裂阵配置的旁瓣抑制方法

曹宦植, 蔡志明, 幸高翔, 奚畅

海军工程大学电子工程学院, 湖北武汉 430033

收稿日期:2018-04-24 修回日期:2019-02-25 出版日期:2019-06-25 发布日期:2019-06-25
通讯作者: 幸高翔
作者简介:曹宦植 男,1990年1月出生于黑龙江省哈尔滨市.现为海军工程大学电子工程学院博士研究生.主要研究方向为声呐阵列信号处理.E-mail:caohuanzhi@163.com;蔡志明 男,1962年11月出生于福建省福州市.2002年毕业于哈尔滨工程大学,博士.现为海军工程大学教授、博导.主要研究方向为信号处理、水声物理及声纳技术.E-mail:caizm2008@sina.com;奚畅男,1992年2月出生于河北省保定市.现为海军工程大学电子工程学院博士研究生.主要研究方向为水声信号处理.E-mail:xichangwxx@163.com
基金资助:
国家自然科学基金（No.51679247）

Sidelobe Reduction Method Using Split-Beam Configuration

CAO Huan-zhi, CAI Zhi-ming, XING Gao-xiang, XI Chang

College of Electronic Engineering, Naval University of Engineering, Wuhan, Hubei 430033, China

Received:2018-04-24 Revised:2019-02-25 Online:2019-06-25 Published:2019-06-25

摘要/Abstract

摘要： 常规波束形成技术因原理简单、稳健性好，在被动声呐工程实践中被广泛应用，但其测向精度低且多级旁瓣在探测中会产生虚警.采用相位干涉仪先粗测再精测和相位单元化筛选能量的思想，提出基于不同分裂阵配置的方法实现对目标的高精度、低虚警探测.海上试验数据的实际运用结果表明，本文方法可消除旁瓣干扰，噪声背景级相较常规波束形成技术降低至少5dB.该方法可用于被动均匀线列阵，对雷达和主动声呐的空间谱构建也有一定借鉴意义.

关键词: 被动声呐, 均匀线列阵, 旁瓣抑制, 分裂阵配置, 相位单元化, 高测向精度, 低虚警率

Abstract: Conventional beamforming technology is widely used in passive sonar engineering practice,in view of its simple principle and good robustness,while false alarms due to multilevel sidelobes and low bearing accuracy defect still exist.The method using different split-beam configurations is proposed,considering serial rough and accurate measurement employed in phase interferometer together with energy selection used in phase binning process,to achieve high precision and low false alarm detection.The experimental results show that the proposed method is practical to reduce the sidelobe interference,and the noise background level is reduced by at least 5dB compared to the conventional method.The algorithm is suitable for passive uniform line array,and also has certain reference significance for radar and active sonar in spatial spectrum construction.

Key words: passive sonar, uniform linear array, sidelobe reduction, split-beam configuration, phase binning process, high bearing accuracy, low false alarm rate

中图分类号:

TN911.7

曹宦植, 蔡志明, 幸高翔, 奚畅. 基于分裂阵配置的旁瓣抑制方法[J]. 电子学报, 2019, 47(6): 1388-1392.

CAO Huan-zhi, CAI Zhi-ming, XING Gao-xiang, XI Chang. Sidelobe Reduction Method Using Split-Beam Configuration[J]. Acta Electronica Sinica, 2019, 47(6): 1388-1392.

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基于分裂阵配置的旁瓣抑制方法

Sidelobe Reduction Method Using Split-Beam Configuration

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