上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (7): 995-1005.doi: 10.16183/j.cnki.jsjtu.2023.073
张海刚1,2,3, 谢金怀1,2,3, 刘佳琪4, 龚李佳1,2,3(), 李智1,2,3
收稿日期:
2023-03-03
修回日期:
2023-05-06
接受日期:
2023-06-16
出版日期:
2024-07-28
发布日期:
2024-07-26
通讯作者:
龚李佳,副教授;E-mail:lijia.gong@hrbeu.edu.cn.
作者简介:
张海刚(1981-),教授,博士生导师,主要从事海洋声场建模与应用研究.
基金资助:
ZHANG Haigang1,2,3, XIE Jinhuai1,2,3, LIU Jiaqi4, GONG Lijia1,2,3(), LI Zhi1,2,3
Received:
2023-03-03
Revised:
2023-05-06
Accepted:
2023-06-16
Online:
2024-07-28
Published:
2024-07-26
摘要:
质点振速场强度的深度分布特性对水声探测与估计具有重要影响.基于简正波非相干模态和变换到角度积分的近似条件,推导出质点振速的非相干简正波的角度积分形式,避免了本征值和本征函数的复杂计算,并揭示了质点振速强度在声源深度及对称深度具有显著变化特性的物理机理.数值结果表明:非相干质点振速的角度积分解析式可实现快速计算,并可较好地表征出质点振速强度的深度分布特性;同时,由于简正波模态幅度函数的叠加效应,垂直质点振速与水平质点振速的深度分布存在显著差异性;随后,以质点振速强度差为研究对象,分析了水平距离、声源频率、声速剖面及海水深度等参数对质点振速场强度的深度分布特性的影响.相关结论可为基于矢量场的被动目标深度估计提供理论依据.
中图分类号:
张海刚, 谢金怀, 刘佳琪, 龚李佳, 李智. 浅海质点振速场强度的深度分布特性[J]. 上海交通大学学报, 2024, 58(7): 995-1005.
ZHANG Haigang, XIE Jinhuai, LIU Jiaqi, GONG Lijia, LI Zhi. Depth Distribution Characteristics of Particle Velocity Field Intensity in Shallow Sea[J]. Journal of Shanghai Jiao Tong University, 2024, 58(7): 995-1005.
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