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.
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.
 Citation: 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.

## A New Continuous Time and Frequency Transfer Algorithm Based on GPS Single Different Carrier Phase Observations

• 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。

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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