Kriging方法在GPS水准拟合中的应用  

The application of Kriging method in GPS leveling fitting

作　　者：李明[1,2] 高星伟[1] 文汉江[1] 王军[1] 

机构地区：[1]中国测绘科学研究院,北京100039 [2]辽宁工程技术大学,辽宁阜新123000

出　　处：《测绘科学》2009年第1期106-107,94,共3页Science of Surveying and Mapping

基　　金：国家“863”计划(2006AA12Z306);2006留学人员科技活动择优资助项目

摘　　要：鉴于GPS水准测量在实际工程中的广泛应用,传统的曲面拟合法不能满足大区域水准拟合的精度要求。本文探讨了Kriging方法在GPS水准拟合中的应用,通过距离分组,确定变异函数,并结合实测数据对本文方法进行了测试,同时与传统曲面拟合法进行了比较,验证了Kriging方法具有拟合精度高、适用复杂的山区等特点。Considering the wide application of GPS leveling in practical project, the traditional polyhedral fitting method can＇ t meet the precision need of wide regional leveling fitting. This paper discussed the application of Kriging method in GPS leveling fitting. Variation function was determined through sorting of distance. Besides, the experiment on the calculating precision was done with the practical data, and comparison with the polyhedral fitting method was performed. At last, the application about the method of Kriging using in the field of GPS leveling was checked and got the results that the method had the characteristics of high fitting precision and complex mountainous area.

关 键 词：GPS水准 KRIGING 曲面拟合 

分 类 号：P228[天文地球—大地测量学与测量工程]