摘要
山区四等水准测量由于道路崎岖不平、多拐弯,施测起来很困难,而GPS控制测量则能迅速提供控制点的大地经纬度和大地高,在已知少数高程点,用高差拟合分析法通过求取点的高程异常来得到各点的高程,能满足四等水准的精度要求。
In mountainous regions,fourth -grade leveling wastes man＇s power and time because of the bumpiness of the ridgeway. GPS positioning technology can rapidly present the geodesic Latitude, Longitude, and height of control point. With a few height points been known,the results obtained by using the method of height difference＇s fitting and analysis can meet the precision of fourth grade leveling.
出处
《城市勘测》
2008年第4期69-71,共3页
Urban Geotechnical Investigation & Surveying
关键词
GPS水准
高程异常
高差拟合分析法
GPS leveling
height transferring
method of height difference＇s fitting and analysis
作者简介
王文庆（1980-），男，硕士，主要从事铁路测量工作。
