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.
JI Guofeng,YANG Zhiqiang,JIA Xiaolin et al. A Study on the Impact of Yaw-Attitude and Solar Radiation Model on Precise Orbit Determination for Beidou Navigation Satellites[J]. jgg, 2018, 38(4): 374-380.
JI Guofeng,YANG Zhiqiang,JIA Xiaolin et al. A Study on the Impact of Yaw-Attitude and Solar Radiation Model on Precise Orbit Determination for Beidou Navigation Satellites[J]. jgg, 2018, 38(4): 374-380.
