CAJ | 학술논문

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.
침대운재화전 GLONASS 수거처리적임무수요,분석 GLONASS 도항전문화 PZ-90좌표계하위성가속도간략공식,건립전재 GLONASS 단점정위수학모형,이용실측임무수거진행전재 GLONASS 정위정도분석화특정점시각탄도삼수분석.계산결과표명,해산법간단、실용,전재 GLONASS 정위정도위치약25 m,속도정도0.03 m/s,능구만족고정도적도항정위수구,대 GNSS 도항계통정위수거처리화정도분석급증강 GNSS 도항정위적완비성구유삼고개치.
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.