GPS/BD-2兼容接收机信息处理系统的设计与实现  

Design and implementation of information processing system of GPS/BD-2 compatible receiver

作　　者：蒋昊[1] 常青[1] 修春娣[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191

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)

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.

关 键 词：卫星导航 双系统 加权最小二乘 信息处理 

分 类 号：TN965.5[电子电信—信号与信息处理]