控制网边长高程投影变形与椭球面距离投影到高斯平面的长度变形相互抵消的研究  

Research on the mutual offset of the elevation projection deformation of the control network side length and the length deformation of the ellipsoid distance projected to the Gaussian plane

作　　者：张雪光 黄雄建 杨烽 ZHANG Xueguang;HUANG Xiongjian;YANG Feng(Yunnan Construction Investment First Survey and Design Co.,Ltd.,Kunming 650102,China)

机构地区：[1]云南建投第一勘察设计有限公司,云南昆明650102

出　　处：《中国高新科技》2025年第1期158-160,共3页

摘　　要：文章通过对GNSS技术原理、控制网基础知识以及高海拔地区测量特点的阐述,建立了长度投影变形的分析框架。在此基础上,详细阐述了地面水平距离投影到参考椭球面和参考椭球面距离投影到高斯平面的分析方法,并提出了投影变形值抵消的最终投影变形理论。实地测量与数据分析部分结合了实测数据,对地面水平距离和参考椭球面至高斯平面的投影变形进行了详细的分析,揭示了变形规律和影响因素。通过对投影变形值的抵消,得到了最终的投影变形结果。文中的研究成果不仅有助于深入理解高海拔地区GNSS控制网长度投影变形的机理,还为工程测量和地理空间分析提供了实用的指导和理论支持。This paper establishes an analysis framework for length projection deformation by explaining the principles of GNSS technology,basic knowledge of control networks,and measurement characteristics in high-altitude areas.On this basis,the analysis methods of ground horizontal distance projection to the reference ellipsoid and reference ellipsoid distance projection to the Gaussian plane are elaborated in detail,and the final projection deformation theory of projection deformation value offset is proposed.The field measurement and data analysis part combines the measured data to conduct a detailed analysis of the projection deformation of the ground horizontal distance and the reference ellipsoid to the Gaussian plane,revealing the deformation law and influencing factors.By offsetting the projection deformation value,the final projection deformation result is obtained.The research results of this paper not only help to deeply understand the mechanism of GNSS control network length projection deformation in high-altitude areas,but also provide practical guidance and theoretical support for engineering measurement and geospatial analysis.

关 键 词：高海拔地区 GNSS控制网 长度投影变形 抵偿面 投影变形抵消 

分 类 号：TV221[水利工程—水工结构工程]