应用GPS数据与重力数据确定大地水准面

应用GPS数据与重力数据确定大地水准面

于小平¹，张廷玉²，刘财¹，陈增宝³,许惠平⁴，庞贺民¹

1.吉林大学地球探测科学与技术学院，长春 130026;2.长春工程学院勘察与测绘学院，长春 130012;3.吉林省测绘局，长春 130000;4.同济大学海洋与地球科学学院，上海 200092

收稿日期:2007-09-26 修回日期:1900-01-01 出版日期:2008-09-26 发布日期:2008-09-26
通讯作者: 于小平

Determination of Geoid by GPS and Gravity Data

YU Xiao-ping¹, ZHANG Ting-yu², LIU Cai¹, CHEN Zeng-bao³, XU Hui-ping⁴,PANG He-min¹

1.College of GeoExploration Science and Technology,Jilin University, Changchun 130026, China;2.College of Investigation and Survey,Changchun Institute of Technology, Changchun 130012,China;3.Bureau of Surveying and Mapping of Jilin Province, Changchun 130000, China;4.School of Ocean and Earth Science, Tongji University, Shanghai 200092, China

Received:2007-09-26 Revised:1900-01-01 Online:2008-09-26 Published:2008-09-26
Contact: YU Xiao-ping

摘要/Abstract

摘要： 作为GPS/重力边值问题理论及方法的应用，在对GPS/重力方法确定（似）大地水准面的原理进行简要介绍与分析的基础上，利用收集到的N区的600个GPS/重力数据和48个高精度GPS水准数据，计算出该区域的（似）大地水准面。通过拟合法和系统差直接改正法进行的精度分析表明，应用GPS/重力数据结合水准方法确定的该地区（似）大地水准面的精度达到厘米级精度。

关键词: GPS/重力边值问题, （似）大地水准面, 精度分析, 重力测量

Abstract: As an application and test of GPS/gravity boundary value problem, a local geoid located in N area is determined by 600 GPS/gravity data and 48 GPS/leveling data. The accuracy analysis by GPS/leveling data matching and direct correction of system difference show that a centimeter accuracy of local geoid can be achieved by combining the method of GPS/gravity data and the method of GPS/gravity boundary value problem.

Key words: GPS/gravity border value problem, quasi-geoid, accuracy analyses, gravity surveying

中图分类号:

P631.1

于小平，张廷玉，刘财，陈增宝,许惠平，庞贺民. 应用GPS数据与重力数据确定大地水准面[J]. J4, 2008, 38(5): 904-0907.

YU Xiao-ping, ZHANG Ting-yu, LIU Cai, CHEN Zeng-bao, XU Hui-ping,PANG He-min. Determination of Geoid by GPS and Gravity Data[J]. J4, 2008, 38(5): 904-0907.

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