现代电子技术2024，Vol.47Issue(9)：66-70,5.DOI:10.16652/j.issn.1004-373x.2024.09.012
水下声传感器网络联合同步和定位方法
Joint clock synchronization and localization method for underwater acoustic sensor networks
摘要
Abstract
Underwater acoustic sensor networks(UASNs)have gained considerable attention from academic and industrial researchers thanks to their wide range applications in ocean monitoring,resource exploration,disaster prevention and oceanography data collection.In the services,the accurate node localization is one fundamental issue in the study of UASNs.However,in the actual underwater environment,the existence of propagation speed variation with depth(i.e.,stratification effect)and asynchronous clock affects the ranging accuracy obviously,and in turn decreases the localization performance.In view of the above characteristics,an autonomous underwater vehicle(AUV)aided joint synchronization and localization method for UASNs is designed.After starting the localization process,the target node establishes the underwater acoustic propagation equation by receiving the beacon signals transmitted by the AUV,and estimates the relative distance,in which the asynchronous clock and ray bending caused by the stratification effect are considered,so as to realize the jointly estimation of localization and clock synchronization of the target node.The simulation results verify the effectiveness and feasibility of the proposed method.关键词
自主水下航行器(AUV)/时钟同步/水下声传感器网络/测距精度/分层效应/联合同步和定位方法Key words
AUV/time synchronization/UASN/ranging accuracy/stratification effect/joint synchronization and localization method分类
信息技术与安全科学引用本文复制引用
邱枫,仓乃梦..水下声传感器网络联合同步和定位方法[J].现代电子技术,2024,47(9):66-70,5.基金项目
海南省自然科学基金青年基金项目(620QN284) （620QN284）
