摘要
高精度的潮位信息,是海洋科学研究和工程应用的关键基础。随着现代海洋活动的扩展,离岸的远距离潮位信息需求不断增强。为了进一步推动离岸高精度潮位信息的获取,本文基于网络RTK技术,开展了单北斗浮标潮位测量的可行性试验、精度研究和姿态补偿影响分析。实验结果表明:高程方面,加入姿态补偿能够有效的减小误差,提高测量精度。在未加入姿态补偿条件下,潮位测量的最大绝对误差为4.10 cm,平均偏差为1.34 cm,标准差为1.54 cm,精度能够达到为1.96 cm。加入姿态补偿后,潮位测量的最大绝对误差减小至3.30 cm,平均偏差减小至1.14 cm,标准差减小至1.44 cm,精度能够提高到1.75 cm。相位方面,整体的相位滞后差异保持在4°以内,加入姿态补偿对于改善相位偏移无明显作用。因此,基于网络RTK的单北斗浮标在潮位测量方面具备一定的可行性。在智慧航道建设、海道测量等领域,基于网络RTK的单北斗验潮浮标具备一定的应用前景。
High-precision tidal level data serves as a critical foundation for marine scientific research and engineering applications.With the expansion of modern marine activities,the demand for offshore long-distance tidal level information continues to grow.To further advance the acquisition of offshore high-precision tidal level data,this study conducted feasibility testing,accuracy research,and attitude compensation impact analysis for single-Beidou buoy tidal level measurement based on network RTK technology.Experimental results indicate:regarding elevation,incorporating attitude compensation effectively reduces errors and enhances measurement accuracy.Without attitude compensation,the maximum absolute error in tide level measurement was 4.10 cm,with an average deviation of 1.34 cm and a standard deviation of 1.54 cm,achieving an accuracy of 1.96 cm.With attitude compensation applied,the maximum absolute error decreased to 3.30 cm,the average deviation reduced to 1.14 cm,the standard deviation decreased to 1.44 cm,and the accuracy improved to 1.75 cm.Regarding phase,the overall phase lag variation remained within 4°.Adding attitude compensation showed no significant effect on improving phase shift.Therefore,a single-Beidou buoy based on network RTK demonstrates certain feasibility for tide level measurement.In fields such as smart waterway construction and hydrographic surveying,a single-Beidou tide gauge buoy based on network RTK holds promising application prospects.
作者
蒋枭宇
周文清
邵毅
Jiang Xiaoyu;Zhou Wenqing;Shao Yi(Key Laboratory of Marine Observation Technology,Ministry of Natural Resources,Nation Ocean Technology Center,Tianjin 300110,China)
出处
《电子测量技术》
2025年第24期121-127,共7页
Electronic Measurement Technology
基金
国家重点研发计划青年科学家项目(2023YFB4204200)项目资助。
