BD-2/GPS双模组合定位性能分析

A method based on the combination of beidou positioning analysis

摘要:

本文针对BD-2/GPS组合以及GPS、BD-2单独系统在济源地区的定位性能进行了评估。分析了在不同模式下的可视卫星数量、几何精度因子、定位的稳定和准确性。当今几大世界卫星导航定位系统的兼容性日益提高和完善,在这种技术发展下使多系统联合定位成为可能。为达到两种系统组合定位的目的,将我国的BD-2与美国GPS技术相融合,在BD-2单系统定位原理的基础上提出了基于BD-2/GPS双系统构成的组合接收系统的设计思路和BD-2/GPS组合导航定位系统的数学解算方法。通过试验表明双模组合定位进一步提高了单独系统模式下的定位性能。

Abstract:

This essay focus on the performance estimation of positioning performance by both BD-2/GPS and each of them independent in JiYuan region. The number of visible satellites, the geometric precision factor, the stability and accuracy of positioning are analyzed in different mode. At present, it is possible to make multi system joint localization under the development of the compatibility of several satellite navigation and positioning systems in the world. In this paper propose an idea of BD-2/GPS integrated navigation system and Mathematical calculation method based on the BD-2.The test result show that integrated navigation system improve the positioning performance of the single system mode.