全球定位系统2025，Vol.50Issue(5)：107-116,10.DOI:10.12265/j.gnss.2025091
授时误差对跨域USV/ARV定位导航系统精度的影响分析
Analysis of the impact of timing errors on the accuracy of cross-domain USV/ARV positioning and navigation system
摘要
Abstract
Timing error is a critical factor influencing underwater target positioning and navigation accuracy,particularly in cross-domain unmanned surface vehicle/autonomous and remotely operated underwater vehicle(USV/ARV)systems,where it directly affects overall operational performance.This study develops a mathematical model of timing errors for USV/ARV mobile observation systems and analyzes their propagation under three scenarios:one-time pre-submersion timing,intermittent timing,and real-time timing.Monte Carlo simulations reveal that timing errors strongly depend on the adopted timing method;in one-time timing,crystal oscillator frequency drift is the dominant factor;in intermittent timing,errors increase with the timing interval,with different primary contributors at varying intervals;in real-time timing,system processing delay becomes the main source of error.The results highlight that improving timing accuracy and optimizing error compensation strategies are essential for achieving high-precision underwater target positioning and tracking,thereby offering both theoretical foundations and engineering guidance for the optimization of underwater positioning,navigation and timing systems.关键词
水下定位/导航授时/跨域USV/ARV定位导航系统/时钟漂移/系统延迟/硬件抖动Key words
underwater positioning/navigation and timing/cross-domain USV/ARV positioning and navigation system/clock drift/system delay/hardware jitter分类
电子信息工程引用本文复制引用
张华霞,贺贺,王惠刚,杨龙飞..授时误差对跨域USV/ARV定位导航系统精度的影响分析[J].全球定位系统,2025,50(5):107-116,10.基金项目
山东省青年科学基金(ZR2025QC1633) （ZR2025QC1633）
广西中央引导地方科技发展资金(2024ZYZ3135) （2024ZYZ3135）
山东省科技型中小企业创新能力提升工程(2023TSGC0601) （2023TSGC0601）
