The US Naval Research Laboratory (NRL) has developed clock ensembles for a number of vital GNSS projects and services throughout the US and international community. Some efforts include algorithms for local realization of Coordinated Universal Time; participation in the upgrade of the Global Positioning System (GPS) system time; the initial implementation of a coherent geophysical reference time known as IGS Time (IGST); and development of various Department of Defense (DoD) capabilities for the dissemination and transfer of precise time. This paper will cover the major algorithm components that compute and maintain a robust and stable time reference for the most stringent applications mentioned here. These components include automated alert and response to clock anomalies and reduction of measurement weight in response to large clock measurement residuals. Both real and simulated data have been used to validate the ensemble algorithm and its products for reliable and robust usage in these environments.

中文翻译：

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用于GNSS应用的自主时钟集成算法

美国海军研究实验室（NRL）为美国和国际社会的许多重要GNSS项目和服务开发了时钟组件。一些工作包括本地实现协调世界时的算法；参与全球定位系统（GPS）系统时间的升级；相干地球物理参考时间的初始实现称为IGS时间（IGST）；以及国防部（DoD）各种功能的开发，以传播和转移精确的时间。本文将介绍主要算法组件，这些组件可为此处提到的最严格的应用程序计算并维护可靠且稳定的时间参考。这些组件包括自动警报和对时钟异常的响应，以及对较大的时钟测量残差的响应，从而减轻了测量重量。实际数据和模拟数据都已用于验证集成算法及其产品，以在这些环境中可靠且可靠地使用。