摘要
对我国正进行的精化大地水准面工作中若干问题作了讨论,包括:1)推估内插(或拟合)模型;2)利用莫霍面起伏资料代替均衡假说;3)GPS水准布网的优化设计;4)利用GPS水准及重力资料精化大地水准面的精度估计。
In this paper, we discuss some practical problems on the precise determination of regional geoid, including: (1) Filtering and interpolation model, (2) Use of real Moho data instead of the aerostatic hypothesis, (3) Optimal design of GPS leveling network, and finally, (4) the accuracy estimation of precise geoid determination using GPS leveling and gravity data.
出处
《地理空间信息》
2006年第5期1-3,共3页
Geospatial Information
关键词
重力测量
GPS水准
精化大地水准面
gravity measurement
GPS leveling
precise determination of geoid