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Vectorized and federated software receivers combining GLONASS and GPS

机译：矢量化和联合软件接收器结合了Glonass和GPS

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In traditional federated receiver, all the tracking channels work independently, and there is no interaction among them. However, in vectorized receiver, stronger channels aid others in their tracking. Such architecture makes a receiver to be of interest for positioning in urban canyons and harsh environments. On the other hand, the combination of GPS and GLONASS as the only augmented global constellations is utilized to increase the availability of the receivers which is defined as the percentage of the epochs with enough number of tracked satellites for solving the positioning equation. We report about the software implementation of a GPS-combined-GLONASS Vectorized Receiver (GGVR) and performance assessment of this architecture in signal attenuation and blocking incidents. We also compare the GGVR performance with a GPS-combined-GLONASS Federated Receiver (GGFR). Experimental tests in different case studies are included. The results show that in the static blocking situation, the GGVR can reacquire the signal immediately after the momentary outage while the GGFR must return to acquisition stage. For two dynamic case studies, one in a suburban road and one in an urban canyon, the position results on the road are the same, but in an urban environment, the GGFR has only 88% availability in contrast to 100% availability of the GGVR.
机译：在传统的联邦接收器中，所有跟踪渠道都独立工作，它们之间没有互动。但是，在矢量化接收器中，更强的渠道帮助他人跟踪。这种架构使接收器感兴趣地在城市峡谷和恶劣环境中定位。另一方面，使用GPS和Glonass的组合作为唯一增强的全局星座，用于增加接收器的可用性，该接收器被定义为具有足够数量的跟踪卫星的时代的百分比，以求解定位方程。我们报告了GPS组合 - Glonass矢量化接收器（GGVR）的软件实现以及在信号衰减和阻塞事件中对该架构的性能评估。我们还将GGVR性能与GPS组合 - Glonass联合接收器（GGFR）进行比较。包括不同案例研究的实验测试。结果表明，在静态阻挡情况下，GGVR可以在瞬间停电后立即重新识别，而GGFR必须返回采集阶段。对于两个动态案例研究，一个在郊区路和一个在城市峡谷中，地位在路上的位置是相同的，但在城市环境中，GGFR只有88％的可用性与GGVR的100％可用性相比。

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