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[会议论文] 作者：Sumei Yu,Tianhe Xu,
来源：第七届中国卫星导航学术年会 年份：2016
This paper evaluates the precision of iGMAS orbit and clock products,and analyzes their consistency.By the methods of orbit comparisons and day boundary discontinuities (DBDs),the iGMAS orbit precisio...
Multi-GNSS kinematic relative positioning of multiple base stations and its application in deformati
[会议论文] 作者：Honglin Tang,Tianhe Xu,
来源：第十届中国卫星导航学术年会 年份：2019
The traditional single base station GNSS deformation monitoring system is greatly influenced by the base station stability and data quality. In order to improve the accuracy and reliability of monitor...
[期刊论文] 作者：Yuanxi YANG,Tianhe XU,Shuqiang,
来源：测绘学报(英文版) 年份：2018
Territorial water is a significant part of national sovereignty of China,thus the infrastructures of national space datum and location services should cover the...
[期刊论文] 作者：Tianhe Xu,Lei Ren,Ruru Gao,,
来源：Geodesy and Geodynamics 年份：2017
Satellite gravity data fusion with multi-type and huge-amount is one of the hot topics in physical geodesy.After a brief review of dynamic approach,the CHAMP-only and GRACE-only gravity fields by usin...
[期刊论文] 作者：Yuanxi YANG,Tianhe XU,Shuqiang XUE,,
来源：Journal of Geodesy and Geoinformation Science 年份：2018
Territorial water is a significant part of national sovereignty of China,thus the infrastructures of national space datum and location services should cover the sea areas except for the land areas.Chi...
[会议论文] 作者：Bingsheng Zhang,Tianhe Xu,Ruru Gao,
来源：第九届中国卫星导航学术年会 年份：2018
With the development of national marine strategic plan,the demand of underwater high-precision positioning is increasing greatly.Acoustic wave,as an information carrier,plays an important role in unde...
The Long-term Performance Analysis and Comparision of BDS On-board Atomic Clock Based on Precise Clo
[会议论文] 作者：Huijie Xue,Tianhe Xu,Qingsong Ai,Shengchao Wang,
来源：第九届中国卫星导航学术年会 年份：2018
As an important load of BDS,the performance of satellite-borne atomic clock directly affects the service level of navigation system.Based on the requirements of navigation system on atomic clocks in o...
[会议论文] 作者：Wenfeng Nie,Tianhe Xu,Yujun Du,Fan Gao,Guochang Xu,
来源：第二届中国大地测量与地球物理学学术大会 年份：2016
A new numerical algebra solution for the state transition matrix is proposed in this paper.The objective of the numerical algebra solution is to yield a comparable accuracy of orbit determination whil...
[会议论文] 作者：Hongliang Cai,Guo Chen,Wenhai Jiao,Kangkang Chen,Tianhe Xu,
来源：第七届中国卫星导航学术年会 年份：2016
The international GNSS Monitoring and Assessment System (iGMAS) is developed as a service platform for multi-GNSS and the Product Integration and Service Center (ISC) is the products reprocess center...
[会议论文] 作者：Qingsong AI,Tianhe Xu,Dawei Sun,Hongwei Xiong,Shengchao Wang,
来源：第八届中国卫星导航学术年会 年份：2017
Atomic clock is composed of various components of electronic devices,and its comprehensive effect of the internal and external environment makes it easily affected by many kinds of noise....
Accuracy Assessment and Improvement of GNSS Precise Point Positioning under Ionospheric Scintillatio
[会议论文] 作者：Zhenlong Fang,Wenfeng Nie,Tianhe Xu,Zhizhao Liu,Shiwei Yu,
来源：第十届中国卫星导航学术年会 年份：2019
We focus on the accuracy analysis and improvement of multi-GNSS precise point positioning (PPP) during ionospheric scintillation. By using the observation data from Hong Kong Satellite Positioning Ref...
[期刊论文] 作者：Ke Qi,Guoqing Qu,Shuqiang Xue,Tianhe Xu,Xiaoqing Su,Yixu Liu,Jun Wan,,
来源：Acta Oceanologica Sinica 年份：2019
Global navigation satellite system(GNSS)/acoustic positioning precision is determined by the positioning geometry and the ranging precision; thus optimizing GNSS buoys array is meaningful to improve t...
[期刊论文] 作者：Yuanxi YANG,Yanxiong LIU,Dajun SUN,Tianhe XU,Shuqiang XUE,Yunfeng HAN,Anmin ZENG,,
来源：Science China(Earth Sciences) 年份：2020
Seafloor geodetic network construction involves the development of geodetic station shelter, network configuration design, location selection and layout, surveying strategy, observation model establis...
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