GPS在物理大地测量中的应用及GPS边值问题

Abstract

针对GPS技术逐步用于物理大地测量的现状,从物理大地测量的基本原理及方法入手,分析了GPS对传统物理大地测量理论及方法所产生的影响、GPS在解决物理大地测量中的一些难题所发挥的作用以及对物理大地测量的一些功能所造成的变化。重点讨论了物理大地测量边值问题的基本属性的改变、第二边值问题的应用、高程系统的确定、GPS边值问题的定义、特征及求解。最后,对GPS与物理大地测量进一步结合所面临的有关问题进行了简要论述。 Starting from the basic principle of physical geodesy, the problems as following are analysed: the effect caused by GPS on the theories and methods of the physical geodesy, the action of GPS in solving some difficult problems of physical geodesy and the change in function of some objects investigated in physical geodesy. In the mean time, the discussions in this paper refer to the application of Neumann boundary value problem, the determination of height system and the definition and solution of GPS boundary value problem.