大地测量与地球动力学2018，Vol.38Issue(4)：374-380,7.DOI:10.14075/j.jgg.2018.04.009
姿态和光压模型对北斗导航卫星精密定轨的影响分析
A Study on the Impact of Yaw-Attitude and Solar Radiation Model on Precise Orbit Determination for Beidou Navigation Satellites
摘要
Abstract
Based on the results of GPS/BDS dual systems joint orbit determination,the orbit quality variation characteristics of new and old satellites are given,and the impacts of different attitude control modes on POD are analyzed.For the defects of the solar radiation pressure (SRP) model,we propose two modified POD strategies and discuss their availability.The results show that when the acute angle between sun vector and orbit-plane is less than 4 degrees,the yaw attitudes of old IGSO and MEO satellites are switched and significant orbit quality degradation is observed,while the orbit quality of the IGSO-6 satellite is stable.The ECOM SRP model is suitable for the IGSO-6 satellite,but not for old BDS satellites.Both modified POD strategies can improve the orbit accuracy of BDS satellites to some extent.关键词
精密定轨/动偏模式/零偏模式/太阳光压模型/IGSO-6卫星Key words
precise orbit determination/yaw-steering mode/orbit-normal mode/solar radiation pressure model/IGSO-6 satellite分类
天文与地球科学引用本文复制引用
计国锋,杨志强,贾小林,曾添..姿态和光压模型对北斗导航卫星精密定轨的影响分析[J].大地测量与地球动力学,2018,38(4):374-380,7.基金项目
中央高校基本科研业务费专项(310826175016).Fundamental Research Funds for the Central Universities,No.310826175016. （310826175016）
