GPS水准移动插值法相关问题分析  

Analysis on some problems about moving interpolation method in GPS-leveling

作　　者：刘长建[1] 柴洪洲[1] 吴洪举[1] 马高峰[1] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052

出　　处：《测绘工程》2009年第2期28-31,共4页Engineering of Surveying and Mapping

摘　　要：讨论GPS水准移动插值法内插与外推精度的差异、转换正常高的精度估计和高程等级评定等问题,利用某测区的GPS水准数据,对移动加权平均法、移动多项式曲面法以及顾及地球重力场模型的相应方法进行比较,给出选择最佳移动插值法的建议。Some problems, such as the difference between interpolation accuracy and extrapolation accuracy, accuracy estimating of translated n＇ormal height, evaluating on height elass of GPS-Leveling and so on, are discussed. By use of a set of GPS-Leveling data, moving weighted average and moving polynomial function and corresponding methods with earth gravity model are compared. At the end, advice for how to choose the best moving method is given.

关 键 词：GPS水准 移动插值法 精度估计 高程等级 

分 类 号：P228[天文地球—大地测量学与测量工程]