摘要
为实现GPS与我国的北斗二号(BD-2)兼容导航接收机的信息处理系统,在单系统定位数学模型上建立了GPS/BD-2组合导航系统的数学模型,并结合双系统兼容定位特点进行了分析。为了降低定位精度较低的GPS信号对兼容定位精度的影响,提出使用加权最小二乘法进行定位解算的方案,用C/C++语言实现了基于该算法的信息处理软件,并给出了软件流程和结果分析。通过实际测试和调试,证明了此算法及软件的可行性。
For realizing the information processing system of GPS/BD-2 compatible navigation receiver, this study established a mathematical model of GPS/BD-2 based on single positioning system, and analyzed the characteristics of dual-system positioning system. In order to decrease the influence of low positioning precision of GPS, a proposal was made that using Weighted Least Square（WLS） method as the basis of position solution. A suit of information processing system was realized based on WLS in C/C＋＋ language. The software process was described and the results were analyzed. The algorithm and software were experimentally validated.
出处
《信息与电子工程》
2009年第6期506-510,共5页
information and electronic engineering
基金
国家"863计划"资助项目(2007AA12Z336
2009AA12Z313)
关键词
卫星导航
双系统
加权最小二乘
信息处理
satellite navigation
dual-system
Weighted Least Square
information process
