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Positioning accuracy and reliability of GALILEO, integrated GPS-GALILEO system based on single positioning model

机译：GALILEO的定位精度和可靠性，基于单个定位模型的集成GPS-GALILEO系统

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摘要

A kind of uniform reliability index suitable for the code and phase observations is presented and used in reliability evaluation of satellite systems. Then, based on 25 stations of Crustal Movement Observation Network of China, satellite visibility, positioning availability and observation reliability of GPS, GALILEO and integrated GPS-GALILEO are calculated and analyzed in detail. Simulation results reveal that the satellite visibility of GALILEO is superior to that of GPS. Given positioning accuracy, horizontal positioning availability of GALILEO is consistent with that of GPS, but its vertical positioning availability is superior to that of GPS. However, the integrated GPS-GALILEO is shown to be superior to each of the single systems in the aspects of positioning accuracy and availability. The reliability of code and phase observations based on GALILEO and integrated GPS-GALILEO system is superior to that of GPS both in spatial and temporal domains on the whole. The new reliability index presented is simple to calculate and reflects reliability differences of different satellite systems.
机译：提出了一种适用于码相观测的统一可靠性指标，并用于卫星系统的可靠性评估。然后，基于中国地壳运动观测网的25个站点，对GPS，GALILEO和集成GPS-GALILEO的卫星能见度，定位可用性和观测可靠性进行了详细分析。仿真结果表明，GALILEO的卫星能见度优于GPS。给定定位精度，GALILEO的水平定位可用性与GPS一致，但其垂直定位可用性优于GPS。但是，在定位精度和可用性方面，集成GPS-GALILEO被证明优于单个系统。基于GALILEO和集成的GPS-GALILEO系统的代码和相位观测的可靠性在总体上在时空方面都优于GPS。提出的新可靠性指标易于计算并反映了不同卫星系统的可靠性差异。

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