摘要
针对浅海环境下水声通信信号被动测距问题,采用模态分解的声场分析方法,对阵不变量在浅海环境下的计算方法进行了理论分析和推导。基于水声通信信号高频、突发的特点,采用射线声传播模型对浅海垂直阵列接收水声通信信号场景进行了建模和仿真,提出了基于阵不变量的水声通信信号被动测距算法,并通过数值仿真和对比分析验证了算法功能和被动测距精度。
To address the problem of passive ranging of underwater acoustic communication signals in shallow water environments,the computing method of array invariant in shallow water environments is theoretically analyzed and derived by using the acoustic field analysis method of modal decomposition.Based on the characteristics of high frequency and burst of underwater acoustic communication signals,a ray acoustic propagation model is used to model and simulate the scene of underwater acoustic communication signals received by a vertical array in shallow water.A passive ranging algorithm for underwater acoustic communication signals based on array invariant is proposed,and the algorithm function and passive ranging accuracy are verified through numerical simulation and comparative analysis.
作者
李晋
LI Jin(No.54 Institute of CETC,Shijiazhuang Hebei 050081,China)
出处
《通信技术》
2023年第6期682-687,共6页
Communications Technology
基金
国家自然科学基金项目(U20B2071)。
关键词
浅海
阵不变量
水声通信信号
被动测距
shallow water
array invariant
underwater acoustic communication signal
passive ranging
