（硕士论文）北斗二代全球卫星导航系统的精密定轨技术研究.pdfVIP

CSNC2010 第一届中国卫星导航学术年会 北京 北斗二代全球卫星导航系统的精密定轨技术研究 1 2 2 1 徐 薇 崔红正 韩 潮 张善从 (1. 北京国科环宇空间技术有限公司，北京，100190；2.北京航空航天大学宇航学院，北京，100191) 摘 要:针对我国北斗二代卫星导航系统对高精度卫星定轨的需求，本文着重对静止轨道卫星（GEO）和倾斜地球同步轨 道（IGSO）的精密定轨技术作了论述。利用导航信号的非差伪距和载波相位作为测量信息，根据定轨精度的需求选择了 摄动力模型，并对 Kalman 序贯估计算法做了介绍。开发了满足 GEO 和 IGSO 高精度定轨需求的动力学轨道确定软件包 （GEOODTK）。把国内现有的测控站作为卫星导航系统的监测站（MS），考虑监测站的可见性约束，利用GEOODTK对GEO/IGSO 进行轨道确定模拟计算，从结果来看满足要求，以求对北斗二代导航系统的任务设计提供定量依据。 关键词：全球卫星导航系统；GEO/IGSO 卫星；伪距与载波相位观测量；动力学定轨；精密定轨 The research on precise orbit determination of Beidou-2 global navigation satellite system 1 2 2 1 Xu Wei Cui Hongzheng Han Chao Zhang Shancong (1. Department, Beijing 100190, China ； 2. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China) Abstract: Due to the high precision demand on orbit determination of Beidou-2 global navigation satellite system, this paper discusses the precise orbit determination technology for GEO and IGSO, using the pseudorange and carrier phase measurements. The selection for perturbation forces is made and the Kalman sequential processing method is presented. The orbit determination software package (GEOODTK) is developed by aforementioned theoretics. The orbit determination simulation is made by GEOODTK, with the visibility of MS. The simulation result satisfies the precision requirements, which is important to mission design for Beidou-2. Key words: global navigation satellite system; GEO/IGSO satellite; pseudorange and carrier phase measurements; dynamic orbit determina