马志伟,纪兵,钟玉龙

• 1:河南财经政法大学工程管理与房地产学院
• 2:海军工程大学导航工程教研室
• 3:中国地质大学(武汉)地理与信息工程学院

摘要(Abstract)：

针对径向基函数建模框架下参考重力场模型对局部大地水准面精化的影响问题，通过移去不同截断阶次的参考场，分别构建大地水准面模型并进行了精度比较。结果显示，截断至420阶的XGM2016模型，更适合作为科罗拉多地区的参考重力场模型。其所得大地水准面，相对于GPS/水准和区域平均校准模型的误差RMS分别为2.2 cm和2.4 cm,比其他截断阶次下的大地水准面精度提高0.5～2 cm。另外，与其他机构的大地水准面模型相比，其精度也是较优的。该文所采用的确定参考场截断阶次的方法，可为局部地区高精度大地水准面模型的构建提供一定参考。

关键词(KeyWords)： 参考重力场模型;大地水准面;径向基函数;科罗拉多

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(42104087,41874091);; 河南省教育厅科技计划项目(19B170002)

作者(Author): 马志伟,纪兵,钟玉龙

DOI: 10.16251/j.cnki.1009-2307.2022.09.005

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