成英燕,王虎,许长辉,张永浩,刑云剑

• 1:中国测绘科学研究院

摘要(Abstract)：

全球基准从参与构建框架的方式来说分为长期框架和短期框架(历元框架),由于框架点运动的非线性特性,长期框架构建的基准无法描述毫米级地球表面运动,常会采用短期框架来描述。短期框架实现时严格说应该保证空基(卫星轨道)和地基(ITRF、IGS)的一致性,再者,空间大地测量技术综合框架与单一技术基准在构建和维持上同样存在差异,这些不一致都将导致地面站坐标表达的差异。不同时期长期框架维持差异性及精度也是我国框架维持需考虑的问题,该文就以上各类框架构建策略不同对实际点位的影响进行了比较分析并给出结论,供我国高精度基准建设参考。

关键词(KeyWords)： 空间大地测量技术;历元参考框架;基准维持

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFB0501405)

作者(Author): 成英燕,王虎,许长辉,张永浩,刑云剑

DOI: 10.16251/j.cnki.1009-2307.2019.06.005

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