论文标题
使用GPS和BDS的完整和分数伪测量的单点定位
Single point positioning using full and fractional pseudorange measurements from GPS and BDS
论文作者
论文摘要
在常规的全球导航卫星系统（GNSS）接收器中，通常需要进行完整的伪测量来完成单点位置修复。但是，要获得完整的伪造测量值比分数伪测量所需的时间更长。考虑到这一事实，为了缩短首先修复的时间并提高双重施加GNSS接收器的冷或温暖起点，我们建议使用两个导航星座中的完整和分数的伪造测量值提出定位算法。该方法使用来自一个星座的四个完整的伪测量以及来自两个星座的分数测量，以获得潜在的快速位置结果，其精度与使用完整测量的常规定位方法相同。使用模拟和真实的全局定位系统（GPS）和Beidou导航卫星系统（BDS）数据的测试表明，所提出的方法可以生成正确的单点位置解决方案，并且位置误差与使用完整的伪造测量的常规方法相同。
In conventional global navigation satellite system (GNSS) receivers, usually full pseudorange measurements are required to complete a single point position fix. However, to obtain full pseudorange measurements takes longer time than for fractional pseudorange measurements. Considering such a fact, in order to shorten the time to first fix and improve the position accuracy during cold or warm start of a dual-constellation GNSS receiver, we propose a positioning algorithm using full and fractional pseudorange measurements from the two navigational constellations. This method uses four full pseudorange measurements from one constellation along with fractional ones from either or both constellations to obtain a potentially rapid position result with an identical accuracy to that of the conventional positioning method using full measurements. Tests with simulated and real Global Positioning System (GPS) and BeiDou Navigation Satellite System (BDS) data demonstrate that the proposed method can generate correct single point position solutions and the position error is identical with the result from the conventional approach using the full pseudorange measurements.
