Precision Analysis of Single Point Positioning Model with GPS/GLONASS/BDS
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摘要: GNSS伪距单点定位速度快且不存在整周模糊度问题,其原理简单易于编程实现,所以在进行GNSS数据处理时,经常用到该方法。本文以GPS、GLONASS、BDS多模融合为例,简单介绍多模融合存在的坐标统一、时间基准统一问题,再详细介绍多模融合伪距单点定位原理以及解算模型,基于Visual Studio2010平台,编写GPS、GLONASS、BDS多模融合的伪距单点定位及单点测速程序。结合相关算例,对该程序多系统伪距单点定位的精度以及单点测速精度进行分析。
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关键词:
- GPS/GLONASS/BDS /
- 伪距单点定位 /
- 单点测速 /
- 精度
Abstract: GNSS pseudorange point positioning speed and there is no ambiguity problem, its principle is simple and easy to realize, so in GNSS data processing, this method is often used. Based on GPS, GLONASS, BDS multimode as an example, introduces the existing multimode coordinate unification, unified time benchmark problem then introduces the pseudorange point positioning principle and calculation model, based on the Visual Studio2010 platform, written in GPS, GLONASS, BDS multimode pseudorange single point positioning procedures and absolute velocity determination. Combined with relevant examples,pseudorange point positioning accuracy and absolute velocity determination were analyzed. -
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