二维相似变换模型在GPS网基准点兼容性分析中的应用  

The application of two dimensional similarity transformation model in compatibility analysis of GPS network datum

作　　者：刘庭宏[1] 郭际明[1] 周命端[1] 

机构地区：[1]武汉大学测绘学院,武汉430079

出　　处：《工程勘察》2012年第8期68-71,共4页Geotechnical Investigation & Surveying

基　　金：中央高校基本科研业务费专项资金(2010214101000002)资助

摘　　要：本文在分析二维相似变换模型的基础上,提出了一种适用于工程GPS网基准点兼容性分析的"较差阈值法",给出了较差阈值的确定方法,构建了相应的程序模块,利用工程实例证明了该方法的有效性和正确性。Based on the analysis of the two dimensional similarity transformation model, the paper puts forward a compatibility analysis method named ＂ difference threshold method＂ , which is suitable for point coordinates used as engineering GPS network datum. A method to calculate the difference threshold is given and corresponding program modules are implemented. Finally, the feasibility and effectiveness of this method are proven by an engineering example.

关 键 词：二维相似变换模型 GPS网 基准点 兼容性分析 

分 类 号：P228.4[天文地球—大地测量学与测量工程]