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Tradespace Analysis of GNSS Space Segment Architectures

机译:GNSS空间段架构的商标分析

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Global navigation satellite systems (GNSS) provide ubiquitous, continuous, and reliable positioning, navigation, and timing information around the world. However, GNSS space segment design decisions have been based on the precursor Global Positioning System, which was designed in the 1970s. This article revisits those early design decisions in view of major technological advancements and new GNSS environmental threats. The rich tradespace between user navigation error (UNE) performance and constellation deployment costs is explored and conclusions are complemented by sensitivity analysis and association rule mining. This article finds that constellations at an orbit altitude of similar to 2 earth radii can outperform existing GNSS in terms of cost, robustness, and UNE. These insights should be taken into account when designing future generations of GNSS.
机译:全球导航卫星系统(GNSS)提供全球无处不在,连续,可靠的定位,导航和时序信息。然而,GNSS空间段设计决策一直基于前体全球定位系统,该系统是在20世纪70年代设计的。本文鉴于主要技术进步和新的GNSS环境威胁,重新审视了这些早期设计决策。探讨了用户导航错误(UNE)性能和星座部署成本之间的丰富商标,并通过敏感性分析和关联规则挖掘补充结论。本文发现,在类似于2个地球半径的轨道海拔地区的星座可以在成本,鲁棒性和UNE方面优于现有的GNS。在设计未来几代GNSS时,应考虑这些见解。

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