| 一种单差观测值的连续实时载波相位时频传递方法 |
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| 引用本文： | 黄观文,杨元喜,张勤,涂锐.一种单差观测值的连续实时载波相位时频传递方法[J].武汉大学学报(信息科学版),2013,38(9):1018-1022. |
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| 作者姓名： | 黄观文 杨元喜 张勤 涂锐 |
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| 作者单位： | 1长安大学地质工程与测绘学院;2西安测绘研究所;3地理信息工程国家重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(41024004,40902081,41104019,41104022);中央高校基本科研业务费专项资金资助项目(CHD2010ZY001,CHD2011ZY023);宇航动力学国家重点实验室开放研究基金资助项目(2013ADL-DW0103) |
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| 摘 要： | 针对传统GPS共视法(GPS CV)和载波相位时频传递法(GPS Different CP,GPS CP)的特点和局限性,提出了一种基于单差观测值的连续实时载波相位时频传递方法(GPS DCP),该方法利用两个时频传递站上对单颗卫星构成的单差观测值进行GPS CP模式计算,同时利用基于参数贝叶斯估计的算法平滑天与天之间的钟跳。算例结果显示,新算法相比传统GPS CP法在中短距离内具有更高的时频传递精度和稳定性。
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| 关 键 词： | GPS DCP 连续精密单点定位 单差 时频传递 |
| 收稿时间： | 2013-04-20 |
| 修稿时间： | 2013-04-20 |
A New Continuous Time and Frequency Transfer Algorithm Based on GPS Single Different Carrier Phase Observations |
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| HUANG Guanwen,YANG Yuanxi,ZHANG Qin,TU Rui.A New Continuous Time and Frequency Transfer Algorithm Based on GPS Single Different Carrier Phase Observations[J].Geomatics and Information Science of Wuhan University,2013,38(9):1018-1022. |
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| Authors: | HUANG Guanwen YANG Yuanxi ZHANG Qin TU Rui |
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| Institution: | 1College of Geology Engineering and Geomantic,Chang’an University,126 Yanta Road,Xi’an 710054,China;2Xi’an Research Institute of Surveying and Mapping,1 Middle Yanta Road,Xi’an 710054,China;3State Key Laboratory of Geographic Information Engineering,1 Middle Yanta Road,Xi’an 710054,China |
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| Abstract: | The characteristics of GPS Common View(GPS CV) and GPS Carrier Phase time transfer(GPS CP) methods are introduced,and a new continuous time and frequency transfer algorithm based on GPS single Different Carrier Phase observations is proposed.The new algorithm uses an ionosphere-free combination of single but different observations from the same satellite and the processing steps are also consistent with simple traditional GPS CP.But,the Bayesian estimation of prior information is proposed to smooth the day-boundaries of time transfer results.Simulation results,which compared to that of GPS CP method,show that the proposed new algorithm improves the precision and frequency stability of the time and frequency transfer results remarkably. |
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| Keywords: | GPS DCP continuous precise point positioning single different time and frequency transfer |
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