侯晓伟,张双成,刘智强,何月帆,李振宇,王栋

• 1:长安大学地质工程与测绘学院
• 2:北京市地质工程勘察院

摘要(Abstract)：

针对会战式观测模式GPS站估计测站垂向速率时未考虑周期项对速率的影响,导致测站垂向速率可靠性降低的问题,该文研究了基于连续运行参考站系统CORS的GPS连续站坐标时间序列建立测站周期项模型,并以此修正会战式GPS观测模式估计的垂向速率。以PBO网络阿拉斯加州88个GPS站2014—2016年3年的观测数据为基础,首先利用空间加权插值、二次曲面拟合法建立测站周期项模型;其次对区域内会战式GPS站的垂向速率予以修正。结果表明,两种方法均可拟合GPS观测站的年周期项,但二次曲面拟合的效果稍好;用拟合的年周期项对会战式观测站垂向速率修正后,垂向速率的正确性提高了46%以上,说明可用该方法修正会战式GPS观测站的垂向速率,以提高其可靠性。

关键词(KeyWords)： 年周期项;垂向速率;速率修正;会战式GPS观测;CORS网

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41104019,41674001);; 中央高校基本科研业务费专项资金资助(310826172202)

作者(Author): 侯晓伟,张双成,刘智强,何月帆,李振宇,王栋

DOI: 10.16251/j.cnki.1009-2307.2018.07.005

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