ArcObjects在GPS高程转换系统开发中的应用  

Development Application of ArcObjects in Conversion System of GPS Heights

作　　者：赵伶俐[1] 刘帅[1] 朱建军[1] 

机构地区：[1]中南大学信息物理工程学院,湖南长沙410083

出　　处：《北京测绘》2006年第1期13-16,共4页Beijing Surveying and Mapping

摘　　要：在地形复杂大的测区内,进行GPS高程转换时,必须进行分区拟合;分区后,拟合点的精度与其周围水准联测点的分布有很大关系。这要求细分,为得到高精度,文中提出对每一个未联测水准GPS点都进行单独的选点分区,这样做势必费时繁琐。据此,基于组件技术的ArcObjects组件库的运行机制及特点,文中叙述如何应用VB语言,开发一个基于ArcObjects的GPS高程转换系统,其具有精度高、可视化强、信息集中、操作简便等优点,给用户带来了很大的便利。We need to separate GPS height area Quasi-geoid into several parts when transforming GPS height in a large area, and the height abnormal precision on the unknown points is related deeply to the distribution of the known points, the paper puts forward that we should separate GPS height area for every unknown point in order to obtain higher precision, therefore, it will take much time and energy to get higher precision for every calculating time. So, one system used for transforming GPS height is made up instead of fussy operation, which introduced in this paper how to deal with the problem considering of Visual Basic combined with ArcObjects. The system bring more convenience to the users.

关 键 词：GPS高程 分区拟合 ARCOBJECTS COM DLL. 

分 类 号：P228.4[天文地球—大地测量学与测量工程]