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MULTI-GNSS: POTENTIALS, RISKS AND BENEFITS

机译：多重全球导航卫星系统：潜力，风险和利益

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Within this decade, there is the high probability for the full operation of four different Global Navigation Satellite Systems: GPS, GLONASS, Galileo and Beidou. While GPS and GLONASS are already in full operation and undergoing modernisation, efforts are on to get Galileo and Beidou to run fully by 2020. There are also a couple of regional and augmentation systems. Having several systems ought to be well received, but can this be said of the Global Navigation Satellite Systems (GNSS)? Noting the importance of GNSS, the United Nations Office for Outer Space Affairs (UNOOSA) formed the International Committee on GNSS (ICG) as a platform for providers and users, to promote access to and utilisation of GNSS infrastructure. The role of Working Group A of ICG is to ensure the interoperability and compatibility of the different systems. Applying Carson's Best Worst Analysis, this paper seeks to highlight the potentials, risks and benefits of the different systems working together. This method of risk analysis encompasses both quantitative and qualitative analysis. It will answer questions such as: what are the benefits of the systems working as one? What challenges will this pose? Are there other ways of utilising multi-GNSS? Answers to these questions and related issues, will not only benefit GNSS providers; it will also benefit commercial solution/application providers, policy/decision makers and users.
机译：在这十年中，极有可能全面运作四种不同的全球导航卫星系统：GPS，GLONASS，伽利略和北斗。尽管GPS和GLONASS已全面投入使用并正在进行现代化改造，但仍在努力使伽利略和北斗在2020年之前全面运行。还有一些区域和增强系统。拥有多个系统应该会受到良好的欢迎，但是可以说全球导航卫星系统（GNSS）吗？注意到外层空间卫星的重要性，联合国外层空间事务厅（UNOOSA）组建了全球外层空间卫星国际委员会（ICG），作为提供者和用户的平台，以促进获取和利用GNSS基础设施。 ICG的A工作组的作用是确保不同系统的互操作性和兼容性。本文采用卡森的最坏分析法，旨在强调不同系统协同工作的潜力，风险和收益。这种风险分析方法包括定量和定性分析。它将回答以下问题：系统作为一个整体工作有什么好处？这将带来什么挑战？还有其他利用多重GNSS的方法吗？回答这些问题和相关问题，不仅会使GNSS提供者受益;它还将使商业解决方案/应用程序提供商，政策/决策制定者和用户受益。

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