摘要
针对舟山无人岛“担峙岛”和“茶山岛”缺乏高程基准这一问题,结合测区的特殊地形分布,采用GNSS水准拟合法实现了这两座岛屿的跨海高程基准传递,拟合模型为2次曲面拟合。实验结果表明,GNSS水准拟合法内符合精度在±2 mm范围内,其与三角高程测量法对比的外符合精度为±4.5 mm,本次跨海高程传递质量合格、可靠。
In view of the lack of height datum in uninhabited Danshi and Chashan islands in Zhoushan,and combining with the special terrain distribution,GNSS/leveling fitting method is used to realize height datum transference across-sea for these two islands,with a quadric fit model.The results show that the accuracy of inner coincidence of GNSS/leveling fitting method is±2 mm,meanwhile,the accuracy of the external coincidence in comparison with trigonometric leveling is within the range of±4.5 mm,hence the quality of the observation is qualified and reliable.
作者
周波阳
杜向锋
崔家武
麦建开
ZHOU Boyang;DU Xiangfeng;CUI Jiawu;MAI Jiankai(School of Civil and Transport Engineering,Guangdong University of Technology,Guangzhou 510006,China;Guangdong College of Industry and Commerce,Guangzhou 510006,China;Guangzhou Urban Planning&Design Survey Research Institute,Guangzhou 510006,China;Institute of Land Resource Surveying and Mapping of Guangdong Province,Guangzhou 510006,China)
出处
《海洋测绘》
CSCD
2019年第6期43-46,共4页
Hydrographic Surveying and Charting
基金
国家自然科学基金(41504013
41674006)
关键词
跨海高程传递
GNSS水准
曲面拟合法
三角高程测量
无人岛屿开发与保护
height datum transference across-sea
GNSS/leveling
surface fitting
trigonometric leveling•exploration and protection of uninhabited island
