箭载GLONASS弹道确定及精度分析  

On-board GLONASS Trajectory Determination and Precision Analysis

作　　者：赵树强[1,2] 许爱华[1,2] 王家松[1,2] 苏睿[1,2] 刘军虎[2] 

机构地区：[1]宇航动力学国家重点实验室,西安710043 [2]中国西安卫星测控中心,西安710043

出　　处：《导弹与航天运载技术》2013年第1期62-67,共6页Missiles and Space Vehicles

基　　金：国家自然科学基金资助项目(11078001)

摘　　要：针对运载火箭GLONASS数据处理的任务需要,分析GLONASS导航电文和PZ-90坐标系下卫星加速度简略公式,建立箭载GLONASS单点定位数学模型,利用实测任务数据进行箭载GLONASS定位精度分析和特征点时刻弹道参数分析。计算结果表明,该算法简单、实用,箭载GLONASS定位精度位置约25 m,速度精度0.03 m/s,能够满足高精度的导航定位需求,对GNSS导航系统定位数据处理和精度分析及增强GNSS导航定位的完备性具有参考价值。In order to process the GLONASS data of launch vehicles, the feature of the GLONASS navigation data and the brief formula of satellite acceleration under the PZ-90 coordinate system are analyzed in the paper firstly. Then the model of GLONASS single point positioning is established. Finally, the positioning accuracy and the trajectory parameters at the feature point time are obtained through the real measured data of the rocket. The experiment result proves that this algorithm is simple to use; the positioning accuracy and speed can achieve about 25 m and 0.03 m/s respectively. Hence, this algorithm is able to satisfy the high precision requirement for navigation and positioning, and provides references for GNSS data processing and accuracy analysis, and maturity improving of GNSS positioning.

关 键 词：全球导航卫星系统 轨道积分 弹道确定 精度分析 

分 类 号：P228.4[天文地球—大地测量学与测量工程]