Influence of Atmospheric Refraction on Horizontal Angle Surveying  

作　　者：ZHANG Zhenglu DENG Yong LUO Changlin MEI Wensheng 

机构地区：[1]School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China

出　　处：《Geo-Spatial Information Science》2006年第3期157-161,共5页地球空间信息科学学报（英文）

基　　金：SupportedbytheNational973ProgramofChina(No.2003CB716705);InternationalCooperativeFundofEuropeanUnion(No.EVGI-CT-2002-00061).

摘　　要：Side-refraction is the main error source of horizontal angle surveying, but it has little influence on the sides by analyzing the influence of atmospheric-infraction on the ultrahigh-precision side and angle surveying. Choosing oriented direction is crucial to distance and angle measurement in triangulateration network. How to select the oriented direction during angle measurement is presented, and the means to check the quality of auto-surveying with Georobot is brought forward as well. At last some solutions to reduce the influence of side-refraction while disposing and surveying ultrahigh-precision triangulateration network are put forward.Side-refraction is the main error source of horizontal angle surveying, but it has little influence on the sides by analyzing the influence of atmospheric-infraction on the ultrahigh-precision side and angle surveying. Choosing oriented direction is crucial to distance and angle measurement in triangulateration network. How to select the oriented direction during angle measurement is presented, and the means to check the quality of auto-surveying with Georobot is brought forward as well. At last some solutions to reduce the influence of side-refraction while disposing and surveying ultrahigh-precision triangulateration network are put forward.

关 键 词：atmospheric refraction horizontal angle surveying GEOROBOT interchanging method optimal oriented direction 

分 类 号：P221.1[天文地球—大地测量学与测量工程]