单频实时GPS软件接收机导航解算的C++实现  

Realization of PVT Solution for Single Frequency GPS Software Receiver Based on C++ Platform

作　　者：虞婧[1] 陈熙源[1] 

机构地区：[1]东南大学仪器科学与工程学院

出　　处：《舰船电子工程》2009年第2期50-54,共5页Ship Electronic Engineering

基　　金：教育部新世纪人才支持计划项目(编号:NCET-06-0462)资助;船舶支撑技术基金项目(编号:6922001029)资助

摘　　要：针对单频实时GPS软件接收机的导航解算部分主要算法进行了研究,采用C++语言实现了该部分的仿真,并与MATLAB平台条件下仿真结果进行比较,仿真及测试结果表明采用C++语言编制的算法比MATLAB环境实时性要快近3倍,二者间方差的误差约为10-3米,满足一定条件下应用要求。并基于中频采样器GPS210A的前端在不同地区进行了实际数据验证,结果表明本程序可广泛运用于不同地区的导航解算,此时其误差产生的主要原因为电离层延迟。Main algorithms of PVT（position, velocity, time） solution for Single Frequency GPS Software Receiver are studied and realized in this paper. The algorithms are simulated based on C＋＋, then the result is compared with that on MATLAB. Simulation and test show the algorithm in C＋＋ language is faster than in MATLAB platform about 3 times and the error of variance between them is about 10^-3 meters, and algorithm in C＋＋ language can meet application requirement to some extent. Finally, the experiment verification based on IF sampler GPS210A in different regions proved that the program can be used widely and Ionospheric error as one main factor for the solution accuracy is discussed.

关 键 词：GPS软件接收机 导航解算 算法仿真 

分 类 号：P228[天文地球—大地测量学与测量工程]