一种基于时间反转处理的浅海目标监测方法

曲少春; 王英民; 郑 琨

doi:10.11993/j.issn.1673-1948.2014.06.005

一种基于时间反转处理的浅海目标监测方法

doi: 10.11993/j.issn.1673-1948.2014.06.005

西北工业大学航海学院, 陕西西安, 710072

基金项目: 国家自然科学基金资助(51407142)

详细信息

作者简介:
曲少春(1986-), 女, 在读博士, 主要研究方向为水下信号处理技术.

中图分类号: TJ630.34; TN929.3
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- 文章访问数: 954
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- 被引次数: 0
出版历程
- 收稿日期: 2014-09-16
- 修回日期: 2014-10-06
- 刊出日期: 2014-12-20

A Target Monitoring Method in Shallow Water Based on Time Reversal Processing

School of Marine Science and Technology, Northwestern Polytechnical University, Xi′an 710072, China

摘要

摘要: 为了实现浅海环境中对入侵目标实时监测和判断的目的, 基于时间反转技术, 提出了一种利用时间反转镜在浅海环境中产生一条警戒线的水下目标监测方法, 首次从理论上分析了入侵目标强度、深度和与时反阵水平距离等因素对基于时反镜的实时监测系统探测敏感度的影响。针对典型浅海声信道, 通过计算机仿真和理论数据计算结果表明, 采用时间反转技术的浅海水下目标监测方法的性能优于传统浅海警戒方法, 该方法适用于探测小型目标或目标散射回波强度小的物体且不受浅海复杂声道及多途效应影响, 具有较强的实用性。
- 浅海警戒 /
- 时间反转处理 /
- 目标监测
Abstract: A method to generate a cordon based on the time reversal processing for real-time target monitoring and judgment in shallow water is proposed. The effects of target strength and depth, the horizontal distance between the target and the source received array, and other factors on the sensitivity of the monitoring system are analyzed theo-retically. Numerical simulations and theoretical calculations for typical shallow water environment demonstrate that the proposed method is better than conventional alert method in shallow water. The proposed method is suitable for detect-ing small targets and the targets with small scattering echo intensity, and is not influenced by complex shallow water acoustic channel and multi-path effects.
- shallow water alert /
- time reversal processing /
- target monitoring

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参考文献(12)

[1]	Song H C, Hodgkiss W S, Kuperman W A. Multiuser Co- mmunications Using Passive Time Reversal[J]. IEEE Jo- urnal of Oceanic Engineering, 2007, 32(4): 915-926.
[2]	Edelmann G F, Akal T, Hodgkiss W S. An Initial Demon-Stration of Underwater Acoustic Communication Using Time Reversal[J]. IEEE Journal of Oceanic Engineering, 2002, 27(3): 602-609.
[3]	Kuprtman W A, Song H C. Phase Conjugation in the Ocean: Experimental Demonstration of an Acoustic Time- reversal Mirror[J]. Journal of the Acoustical Society of Ameri, 1998, 103(1): 25-40.
[4]	Song H C, Hodgkiss W S, Kuperman WA. Experimental Demonstration of Adaptive Reverberation Nulling Using Time Reversal[J]. Journal of The Acoustical Society of America, 2005, 118 (3): 1381-1387.
[5]	游伟, 何子述, 胡进峰. 基于匹配场处理的天波雷达高度估计算法[J]. 电子与信息学报, 2013, 35(2): 401-405. You Wei, He Zi-shu, Hu Jin-feng. Skywave Radar Altitude Estimation Algorithm Based on Matched-field Processing [J]. Journal of Electronics & Information Technology, 2013, 35(2): 401-405.
[6]	任岁玲, 郭良浩, 金燕利. 基于特征分析的自适应干扰抑制方法在水声目标被动测距中的应用[J]. 应用声学, 2013, 32(4): 312-319. Ren Sui-ling, Guo Liang-hao, Jin Yan-li. Short Baseline Positioning Based on Virtual Time Reversal Mirror[J]. Applied Acoustics, 2013, 32(4): 312-319.
[7]	周洁, 潘翔, 李建龙. 时间反转处理用于目标探测研究[J]. 浙江大学学报, 2008 , 41(12): 20-26. Zhou Jie, Pan Xiang, Li Jian-long. Target Detection Based on Time Reversal Processing[J]. Journal of Zhejiang Uni-versity, 2008, 41(12): 20-26.
[8]	Qu S C, Wang Y M. The Focusing Performance of the Target at Different Depths with Time-reversal Array in Shallow Water[C]//2013 IEEE ICSPC, Kunming, 2013, 711-714.
[9]	Song H C, Kuperman W A. Demonstration of a High-fr- equency Acoustic Barrier with a Time-reversal Mirror[J]. IEEE Journal of Oceanic Engineering, 2003, 28(2): 246- 249．
[10]	Jesus S M. A Time-reversal Suboptimal Detector for Un-derwater Acoustic Barriers[C]//IEEE Journal of Oceanic Engineering, Quebec, 2008: 1-7.
[11]	王晓宇浅海水平阵时反处理混响抑制技术研究[D]. 西安, 西北工业大学, 2012.
[12]	张波, 马忠成, 宋曼. 浅海环境中应答器法测量水下平台声目标强度的理论分析[J]. 应用声学, 2013, 32(24): 109-115. Zhang Bo, Ma Zhong-cheng, Song Man. Theoretical Analy- ses of Measurement of the Acoustic Target Strength of Un- derwater Platform Using the Transponder Method in Shallow Water[J]. Applied Acoustics, 2013, 32 (24): 109-115.