基于斜对称阵列的水下单脉冲降维空时自适应处理

王 莎; 施 博; 郝程鹏

doi:10.11993/j.issn.2096-3920.2020.02.008

基于斜对称阵列的水下单脉冲降维空时自适应处理

doi: 10.11993/j.issn.2096-3920.2020.02.008

王莎^1,2,
施博¹,
郝程鹏¹

1.
中国科学院声学研究所, 北京, 100190
2.
中国科学院大学电子电气与通信工程学院, 北京, 100049

基金项目: 中国科学院声学研究所青年英才计划(QNYC201623)

详细信息

作者简介:
王莎(1993-), 女, 在读硕士, 主要研究方向为水声信号处理技术.

中图分类号: TJ630.34; TN957.51
计量
- 文章访问数: 284
- HTML全文浏览量: 0
- PDF下载量: 120
- 被引次数: 0
出版历程
- 收稿日期: 2019-04-22
- 修回日期: 2019-07-07
- 刊出日期: 2020-04-30

Monopulse Dimension-Reduced Space-Time Adaptive Processing Based on Persymmetric Array

1.
Key Laboratory of Information Technology for Autonomous Underwater Vehicles, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
2.
School of Electronic Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

摘要

摘要: 混响作为声呐系统工作环境中的主要干扰之一, 严重影响声呐系统的检测性能。水下单脉冲空时自适应处理(STAP)能够很好地适应于水声环境, 有效提高运动声呐的混响抑制能力。但在实际混响环境中, 单脉冲STAP存在计算量过大和辅助数据不足2个局限性。文中将阵列的斜对称特性应用于单脉冲局域联合处理(JDL)-STAP中, 仿真试验结果表明, 该算法可以降低对辅助数据的依赖, 提高混响协方差矩阵的估计精度, 有效降低计算量, 提高混响的抑制性能和目标方位估计精度。
- 单脉冲空时自适应处理 /
- 运动声呐 /
- 混响 /
- 斜对称阵列 /
- 局域联合处理
Abstract: Reverberation is one of the main interference in the underwater environment, which seriously affects the detection performance of sonar system. Monopulse space-time adaptive processing(STAP) is more suitable for the underwater acoustic environment and can effectively improve the reverberation suppression capability of the moving sonar. However, there are two limitations of huge computational burden and insufficient secondary data in monopulse STAP in practical applications. In this paper, the persymmetric property of the array is applied to the monopulse joint domain localization(JDL)-STAP algorithm. Simulation results show that this algorithm can reduce the dependence on auxiliary data, improve the estimation accuracy of the reverberation covariance matrix, effectively reduce the calculation amount, improve the suppression performance of reverberation and greatly improve the performance of target azimuth estimation.
- monopulse space-time adaptive processing (STAP) /
- moving sonar /
- reverberation /
- persymmetric array /
- joint domain localized(JDL)

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参考文献(13)

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