基于时空系统统一的北斗与GPS融合定位

摘要

Currently, nine BeiDou satellites have been launched, Regional positioning system of BeiDou has been constructed, It can supply Chinese users with primary three-dimensional positioning, Mainly work of BeiDou is focused on tests and evaluations, This paper discusses conversion of time and coordinates between BeiDou and GPS, broadcasting ephemeris and calculation of satellite coordinates, and precise positioning with BeiDou and GPS, The united precise positioning with BeiDou and GPS is realized, and proved by test results of observations on Sept, 29, 2011, The tests and results can supply reference to construction of BeiDou II system,%我国的北斗卫星导航定位系统目前已经发射9颗北斗卫星，北斗区域卫星导航系统的基本系统已建设完成，正开展星地联调和测试评估工作，已经具备我国范围内的初步三维定位导航能力。本文研究北斗和GPS的时间系统／坐标系统的统一、卫星广播星历与卫星位置计算，以及二者的高精度定位算法，并实现了北斗和GPS载波相位的数据融合和高精度联合定位，最后通过2011-09-29的实测数据和处理结果证明了本文方法的正确性，同时为北斗二号系统的调试提供了相关试验与结果。