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四大GNSS导航卫星系统发播三频及以上观测数据成为必然趋势。本文基于IGS钟差基准研究了三频非组合（UC）精密定轨模型及其模糊度固定方法。将载波相位硬件延迟分成时变和时不变参数，并进行参数重组，得到三频非组合定轨观测模型；类似精密定位中的超宽巷、宽巷、窄巷的分步模糊度固定策略，使用双差法推导了三频非组合模糊度固定方法。以发射三频信号的GPS ⅡF、BDS-2、Galileo卫星为例，进行1/2频点...
在精细考虑伪距和载波相位硬件偏差时变特性的基础上，导出了更为严谨的非差非组合观测方程，并给出了非组合模式下两类GNSS偏差的数学表达形式。基于此，本文详细研究了3种常用的三频精密单点定位（PPP），即无电离层两两组合IF1213、单个无电离层组合IF123与非组合UC123函数模型的独立参数化方法，系统分析了3种PPP模型的相互关系以及GPS/BDS/Galileo三频静、动态PPP定位性能。结果...
SENSORS FOR LOCATION-BASED AUGMENTED REALITY THE EXAMPLE OF GALILEO AND EGNOS
Augmented Reality Sensors Galileo Photogrammetry
2016/7/5
Augmented Reality has long been approached from the point of view of Computer Vision and Image Analysis only. However, much more sensors can be used, in particular for location-based Augmented Reality...
LBS AUGMENTED REALITY ASSISTIVE SYSTEM FOR UTILITIES INFRASTRUCTURE MANAGEMENT THROUGH GALILEO AND EGNOS
LBS 3D GIS augmented reality utilities Galileo photogrammetry pose estimation
2016/7/5
There is a continuous and increasing demand for solutions, both software and hardware-based, that are able to productively handle underground utilities geospatial data. Innovative approaches that are ...
Enhanced model for precise point positioning with single and dual frequency GPS/Galileo observables
GNSS PPP GPS Galileo Single frequency Dual frequency
2014/11/28
This paper introduces a newly developed model for both single and dual-frequency precise point positioning (PPP), which combines GPS and Galileo observables. As is well known, a drawback of a single G...
GALILEO系统及多卫星导航系统完备性监测算法的研究（图）
GALILEO系统 多卫星导航系统
2009/4/21
国家自然科学基金项目，执行时间为2006年1月至2008年12月。该项目基于GALILEO系统要求，建立一套卫星导航系统完备性监测算法，提出用于区域卫星导航定位完备性监测的总体方案和监测站布网方案，利用我国区域性连续卫星定位网，建立一个完备性监测示范系统，并分析在我国利用卫星导航系统进行飞机三级导航（CATⅠ、Ⅱ、Ⅲ）的可能性，为精密导航应用提供可靠的理论和试验依据。