GPS高程分区拟合法在地形复杂地区的应用研究  

Study on Application of GPS Leveling Partition Fitting in Complex Terrain

作　　者：靳丽萍[1] 王露 

机构地区：[1]SGS通标标准技术服务有限公司,上海201319 [2]长江水利委员会水文局长江口水文水资源勘测局,上海200136

出　　处：《现代测绘》2015年第2期10-13,共4页Modern Surveying and Mapping

摘　　要：GPS高程拟合方法已广泛应用于各类工程测量中,是目前提高高程测量效率的有效手段。在地形复杂地区,利用分区拟合方法能更加客观地表达出似大地水准面的真实状况。以绥江县城新址边坡监测为例,利用分区拟合法进行高程拟合,并将其拟合结果与平面拟合法、二次曲面法、多面函数法、BP神经网络等经典拟合模型的拟合结果进行比较,得到分区拟合法在地形复杂地区具有更高的拟合精度的结论。GPS elevation fitting method has been widely used in all kinds of engineering measurement .It is the effective way to improve the elevation measurement efficiency .In complex terrain ,partition fitting method can objectively express quasi geoid . In the example of Suijiang slope monitoring ,partition fitting method was used for elevation fitting ,and the fitting results were compared with plane fitting method ,two times surface method ,polyhedral function ,BP neural network and other classic fitting models .Come to the conclusion that partition fitting model in complex terrain has higher accuracy .

关 键 词：GPS水准 分区拟合 曲面拟合 精度评定 

分 类 号：P228.3[天文地球—大地测量学与测量工程]