GPS/VRS positioning using atmospheric modeling
GPS/VRS positioning using atmospheric modeling
复制标题
DOI：
10.1007/s10291-010-0187-3
复制
发表时间：
2011-07-01
期刊：
影响因子：
4.9
通讯作者：
Galera Monico, Joao Francisco
中科院分区：
文献类型：
--
作者：
Marra Alves, Daniele Barroca;Galera Monico, Joao Francisco
实时密集的全球卫星导航系统（GNSS）网络最近已在许多国家可用。它们可以使用基于网络的策略实现厘米级的定位精度。当这种网络不可用时，需要其他方法来实现准确定位。我们提出了一种在巴西实施的替代方法，以实现基于网络的定位和VRS（虚拟参考站）概念。我们不解决参考站之间的整数歧义，而是从外部大气模式中得到网改正。该方法在巴西圣保罗国家网络进行了测试，其中参考站相距约200公里。在分米级的精度达到了，这是适合在巴西的许多应用。给出了方法的描述、结果和分析。
Real-time dense GNSS (Global Navigation Satellite System) networks have recently become available in many countries. They allow centimeter-level positioning accuracy using a network-based strategy. When such networks are unavailable, alternative methods are needed to achieve accurate positioning. We present an alternative approach implemented in Brazil to realize network-based positioning and the VRS (Virtual Reference Station) concept. We do not resolve integer ambiguities between reference stations but derive the network corrections from external atmospheric models. The method was tested using the So Paulo State Network of Brazil, where the reference stations are about 200 km apart. Accuracy on the level of decimeters was achieved, which is suitable for many applications in Brazil. The description of the method, results and an analysis is presented.