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首页> 外文期刊>Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on >Further Characterization of the Time Transfer Capabilities of Precise Point Positioning (PPP): The Sliding Batch Procedure
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Further Characterization of the Time Transfer Capabilities of Precise Point Positioning (PPP): The Sliding Batch Procedure

机译：精确点定位（PPP）的时间传递能力的进一步表征：滑动批处理程序

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In recent years, many national timing laboratories have installed geodetic Global Positioning System receivers together with their traditional GPS/GLONASS Common View receivers and Two Way Satellite Time and Frequency Transfer equipment. Many of these geodetic receivers operate continuously within the International GNSS Service (IGS), and their data are regularly processed by IGS Analysis Centers. From its global network of over 350 stations and its Analysis Centers, the IGS generates precise combined GPS ephemeredes and station and satellite clock time series referred to the IGS Time Scale. A processing method called Precise Point Positioning (PPP) is in use in the geodetic community allowing precise recovery of GPS antenna position, clock phase, and atmospheric delays by taking advantage of these IGS precise products. Previous assessments, carried out at Istituto Nazionale di Ricerca Metrologica (INRiM; formerly IEN) with a PPP implementation developed at Natural Resources Canada (NRCan), showed PPP clock solutions have better stability over short/medium term than GPS CV and GPS P3 methods and significantly reduce the day-boundary discontinuities when used in multi-day continuous processing, allowing time-limited, campaign-style time-transfer experiments. This paper reports on follow-on work performed at INRiM and NRCan to further characterize and develop the PPP method for time transfer applications, using data from some of the National Metrology Institutes. We develop a processing procedure that takes advantage of the improved stability of the phase-connected multiday PPP solutions while allowing the generation of continuous clock time series, more applicable to continuous operation/ monitoring of timing equipment.
机译：近年来，许多国家计时实验室已经安装了大地测量全球定位系统接收器以及其传统的GPS / GLONASS Common View接收器和双向卫星时间和频率转换设备。这些大地测量接收器中有许多在国际GNSS服务（IGS）中连续运行，其数据由IGS分析中心定期处理。 IGS通过其遍布350多个站点的全球网络及其分析中心，生成了精确的GPS星历组合，以及称为IGS时标的站点和卫星时钟时间序列。大地测量界正在使用一种称为精确点定位（PPP）的处理方法，可以利用这些IGS精确产品来精确恢复GPS天线位置，时钟相位和大气延迟。先前在加拿大自然资源研究所（NRCan）开发的PPP实施情况下，在意大利国立水稻研究所（INRiM；以前为IEN）进行的评估显示，PPP时钟解决方案在短期/中期具有比GPS CV和GPS P3方法更好的稳定性，并且当在多天连续处理中使用时，可以显着减少日边界不连续性，从而可以进行有时间限制的活动式时间转移实验。本文报告了在INRiM和NRCan进行的后续工作，以使用一些国家计量研究所的数据进一步表征和开发用于时间转移应用的PPP方法。我们开发了一种处理程序，该程序利用了相连接的多日PPP解决方案的更高的稳定性，同时允许生成连续的时钟时间序列，这更适用于定时设备的连续操作/监视。

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