基于柔性阵自修正的水下移动网络定位机制  

Underwater mobile network localization mechanism based on self-correction of flexible arrays

作　　者：苏毅珊 王歆睿 范榕 张瑞涛 SU Yishan;WANG Xinrui;FAN Rong;ZHANG Ruitao(School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China;Deepinfar Ocean Technology Inc,Tianjin 300453,China)

机构地区：[1]天津大学电气自动化与信息工程学院,天津300072 [2]深之蓝海洋科技股份有限公司,天津300453

出　　处：《华中科技大学学报(自然科学版)》2025年第3期63-69,共7页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(62171310)。

摘　　要：针对现有水下无人平台编队保持中通信与时间开销较大和欠驱动与阵型确定困难导致被动定位精度低的问题,提出一种基于柔性阵自修正的水下移动网络定位机制.该机制通过低开销快速阵型确定与定位协议和准实时自修正的策略,明显减少基阵位置误差.同时针对复杂的水介质环境,引入声速分层效应误差补偿机制,基于球面内插法进行目标位置解算,实现弱通信条件下移动网络对目标的被动定位.仿真与海试结果表明所提方法相较于现有方法具有更好的稳定性与更高精度.Aiming at the problems of large communication and time overhead in formation keeping,and low passive localization accuracy due to difficulties in underdriving and arrays determination in existing underwater unmanned platforms,an underwater mobile network localization mechanism based on self-correction of flexible arrays was proposed.Through a low overhead fast array determination and localization protocol and a quasi-real-time self-correction strategy,the mechanism effectively reduces the localization error of the base array.Meanwhile,in order to address the complex water medium environment,an error compensation mechanism for the sound speed stratification effect was introduced,and the target position was solved based on the spherical interpolation method to realize the passive localization of the target by mobile network under weak communication conditions.Simulation and sea trial results show that the proposed method has better stability and higher accuracy than existing methods.

关 键 词：阵型自修正 被动定位 柔性阵 水下移动网络 到达时间差 分层效应 

分 类 号：TN929.3[电子电信—通信与信息系统]