通信学报2017，Vol.38Issue(1)：9-15,7.DOI:10.11959/j.issn.1000-436x.2017002
多普勒辅助水下传感器网络时间同步机制研究
Doppler auxiliary time synchronization algorithm for underwater acoustic sensor network
摘要
Abstract
Time synchronization problem in underwater acoustic sensor networks (UWSN) was studied. Due to the propagation of acoustic signals in underwater environment and nodes movement bring some problems to time synchroni-zation. A distributed time synchronization algorithm was proposed based on Doppler method, called NU-Sync. NU-Sync solved the problem of uncertainty propagation delay caused by nodes movement through calculating relative velocity. And autonomous underwater vehicle (AUV) was used as beacon node which can save energy consumption in the process of calculation clock skew. Simulation resulted show NU-Sync achieves high level time synchronization precision.关键词
水下传感器网络/时间同步/多普勒方法/传播时延Key words
UWSN/time synchronization/Doppler method/propagation delay分类
信息技术与安全科学引用本文复制引用
冯晓宁,王卓,朱晓龙,张文..多普勒辅助水下传感器网络时间同步机制研究[J].通信学报,2017,38(1):9-15,7.基金项目
国家自然科学基金资助项目(No.61672181, No.51679058) （No.61672181, No.51679058）
黑龙江省自然科学基金项目资助(No.F2016005) The National Natural Science Foundation of China (No.61672181, No.51679058), The Natural Science Founda-tion of Heilongjiang Province (No.F2016005) （No.F2016005）
