广东省高程基准框架网改造升级技术设计研究

在广东省高程基准框架建设现有工作的基础上,结合国家第三期一等水准测量成果,对广东省高程基准框架网的技术设计进行研究,提出采用赫尔默特方差分量估计法进行水准路线定权,并对整网平差计算方法进行探讨,以期实现全省二、三等水准网的整网平差计算,最终达到与国家第三期一等水准网全面对接,完成对本地区高程基准框架网的全面改造升级。

The research for Guangdong Region Height Datum Frame Network Upgrading Design

This paper, on the basis of the existing achievement of the construction of Guangdong Height Datum Frame,presents the research of technical design of Guangdong Height Datum Frame Network using the results of the first order leveling data of the third-time measurement,and proposes using the Helmert variance components estimation meth-od for weighting,in addition explores the calculation method of integrated adjustment,in order to implement the calcula-tion of integrated adjustment of the second and third order leveling network of Guangdong and finally achieve the total project docking with the first order leveling network of the third-time measurement,completing the comprehensive upgra-ding of height framework network in local area.