| GNSS卫星钟差实时估计与分析 |
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| 引用本文： | 管健安,张涛,刘站科. GNSS卫星钟差实时估计与分析[J]. 测绘工程, 2020, 0(1): 10-14,22 |
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| 作者姓名： | 管健安 张涛 刘站科 |
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| 作者单位： | 中国铁路设计集团有限公司;国家测绘地理信息局第一大地测量队;中国测绘科学研究院 |
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| 摘 要： | 卫星实时钟差求解是GNSS实时位置服务的关键。针对GNSS实时钟差估计过程中待估参数过多的问题,综合高精度估计的非差法与快速解算的历元间差分法优势,采用顾及ISB/IFB参数的GNSS卫星钟差实时混合估计方法,对卫星钟差的实时估计效率、估计精度进行分析,并利用精密单点定位对实时钟差产品进行验证。结果满足高精度导航定位用户的需求。
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| 关 键 词： | GNSS 实时卫星钟差 混合估计 |
Real-time estimation and analysis of GNSS satellite clock |
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| GUAN Jian’an,ZHANG Tao,LIU Zhanke. Real-time estimation and analysis of GNSS satellite clock[J]. Engineering of Surveying and Mapping, 2020, 0(1): 10-14,22 |
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| Authors: | GUAN Jian’an ZHANG Tao LIU Zhanke |
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| Affiliation: | (China Railway Design Corporation,Tianjin 300142,China;National Surveying and Mapping Geographic Information Bureau,The First Geodetic Survey Team,Xi’an 710054,China;China Academy of Surveying and Mapping,Beijing 100830,China) |
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| Abstract: | Satellite real-time clock offset solving is the key to GNSS real-time location service. This paper, for the problem of too many parameters to be estimated in the GNSS real-time clock offset estimation process, considers the advantage of high precision estimation non-difference method and fast solution difference method between epochs, adopts the method of the GNSS satellite mixing real-time clock offset with considering the ISB/IFB parameters, analyzes the the real-time estimation efficiency and estimation accuracy of the satellite clock offset, and verifies the real-time clock offset product by using precise single point positioning method. The result can satisfy the requirement of high-precision navigation and positioning users. |
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| Keywords: | GNSS real-time clock offset mixed estimate |
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