Improving position accuracy by combined processing of Galileo and GPS satellite signals
Improving position accuracy by combined processing of Galileo and GPS satellite signals
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发表时间：
2008-09
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通讯作者：
U. Engel
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作者：
U. Engel
未来，美国GPS和欧洲伽利略卫星系统将提供约60颗卫星用于定位和导航。尽管这两个系统之间存在技术差异，但它们使用的中心频率的共同性创造了开发可互操作的导航卫星接收器的潜力。首先，我们评估这两个系统的性能分别在位置精度方面。为了评估位置精度，我们描述了主要误差源的位置解决方案的影响。此外，我们将研究卫星星座的几何形状相对于用户位置的影响。最后，我们将展示伽利略和GPS信号的组合处理的精度能力。
In the future, the American GPS and the European Galileo Satellite Systems together will offer around 60 satellites for positioning and navigation. Despite technical differences between these two systems, the commonality of the center frequencies they use creates the potential to develop an interoperable navigation satellite receiver. Firstly, we evaluate the performance of both systems separately in terms of position accuracy. In order to assess the position accuracy, we describe the influence of the main error sources on the position solution. Furthermore, we will investigate the impact of the geometry of the satellite constellation relative to the user position. Finally, we will show the accuracy capability for a combined processing of Galileo and GPS signals.