基于波束域相位稳定性的目标检测方法研究

doi:10.3969/j.issn.0372-2112.2016.09.001

电子学报 ›› 2016, Vol. 44 ›› Issue (9): 2033-2039.DOI: 10.3969/j.issn.0372-2112.2016.09.001

• 学术论文 • 下一篇

基于波束域相位稳定性的目标检测方法研究

郑恩明¹, 田甜², 陈新华¹, 王萍³, 李冰¹, 王麟煜¹, 上官经邦¹, 宋春楠¹

1. 中国科学院声学研究所, 北京 100190;
2. 中国电子科技集团第3研究所, 北京 100015;
3. 北京神州惠普科技股份有限公司, 北京 100085

收稿日期:2015-06-29 修回日期:2015-09-22 出版日期:2016-09-25
- 作者简介:
- 郑恩明 男,1985年8月出生于河南省周口市.现为中国科学院声学研究所助理研究员,博士.主要研究方向为阵列信号理、水下目标检测与定位.E-mail:zhengenmingioa@163.com;陈新华 男,1978年7月出生于江苏省泰州市.现为中国科学院声学研究所副研究员,副主任.在国内外发表学术论文20余篇.主要研究方向为水声信号处理,水声工程,水下目标检测与定位.E-mail:chenxinhau@mail.ioa.ac.cn;李冰男,1978年1月出生于湖北省建始县,现为中国科学院声学研究所助理研究员,主要研究方向水声通信.E-mail:libingbj@163.com;王麟煜 男,1972年8月出生于黑龙江省,现为中国科学院声学研究所助理研究员.主要研究方向为水声信号检测与理.E-mail:wlyhyh@163.com
- 基金资助:
- 国家自然科学基金 (No.61372180）; 国家重大科学仪器设备开发专项 (No.2013YQ140431）; 中国科学院声学研究青年人才领域前沿项目资课题 (No.Y454341261）

Target Detection Method Based on the Stability of Beam Domain Phase

ZHENG En-ming¹, TIAN Tian², CHEN Xin-hua¹, WANG Ping³, LI Bing¹, WANG Lin-yu¹, SHANGGUAN Jing-bang¹, SONG Chun-nan¹

1. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100084, China;
2. The Third Research Institute of China Electronics Technology Group Corporation, Beijing 100015, China;
3. Appsoft Technology Co., Ltd, Beijing 100085, China

Received:2015-06-29 Revised:2015-09-22 Online:2016-09-25 Published:2016-09-25
- Supported by:
- National Natural Science Foundation of China (No.61372180); National Key Scientific Instrument and Equipment Development Project (No.2013YQ140431); Young Talent Frontier Project of Acoustics Research of Chinese Academy of Sciences (No.Y454341261)

摘要/Abstract

摘要：

低信噪比下，为解决常规波束形成等权值累加空间谱各方位谱值，导致目标方位谱值被非目标方位谱值淹没，不能实现对水下辐射噪声信号未知的目标检测问题，本文提出了一种基于波束域相位稳定性的目标检测方法.依据水下目标辐射噪声含有稳定线谱及空间谱各方位对应波束域相位稳定性差异，该方法利用波束域相位方差对各方位谱值进行加权统计，实现了对水下目标方位角的有效估计.数值仿真和实验结果表明：相比常规波束形成，该方法可以进一步增强目标方位能量，抑制非目标方位噪声干扰，改善目标检测信噪比增益.

关键词: 阵列信号理, 水下目标辐射噪声, 波束域相位稳定性, 加权统计, 目标检测

Abstract:

In the conventional beam-forming (CBF) under low signal to noise ratio (SNR),the spectrum values of each azimuth are accumulated by equal weight,and the spectrum values of targets are usually inundated in those of non-targets,so the underwater targets with unknown radiated noise can be hardly detected.In order to detect the effective target signal,a target detection method based on the beam domain phase stability is proposed.According to the feature that the underwater target radiates noise with stable line spectrum and the difference of the beam domain phase stability of each azimuth,this method cumulates spectrum values of each azimuth based on the beam domain phase variance by weighted statistical algorithm.Therefore,the azimuth of the underwater target is effectively estimated.The numerical simulation and experimental results both verify that,compared with the conventional beam-forming,this method can well enhance the energy of the target azimuth,restrain the background noise disturbances of non-target azimuth,and improve the SNR gain of the target detection.

Key words: array signal processing, underwater target radiated noise, beam domain phase stability, weighted statistical, target detection

中图分类号:

TB565

郑恩明, 田甜, 陈新华, 等. 基于波束域相位稳定性的目标检测方法研究[J]. 电子学报, 2016, 44(9): 2033-2039.

ZHENG En-ming, TIAN Tian, CHEN Xin-hua, et al. Target Detection Method Based on the Stability of Beam Domain Phase[J]. Acta Electronica Sinica, 2016, 44(9): 2033-2039.

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基于波束域相位稳定性的目标检测方法研究

Target Detection Method Based on the Stability of Beam Domain Phase

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