摘要
利用跟踪与数据中继卫星系统（TDRSS）组成天基测控系统对低轨卫星进行轨道确定，并讨论了低轨卫星在TDRSS系统覆盖区域的时间段，以改进的Gauss-Newton算法为基础，设计了非线性迭代的微分轨道改进算法，有效抑制了算法截断误差。仿真实验证明基于TDRSS的测控技术可显著提高测控覆盖率，减少地面测控站压力，有效确定低轨卫星轨道，定轨位置误差小于20m，速度误差小于0．01m／s，能满足一般低轨卫星的定轨精度要求。
The tendency of modem spaceflight technology is space-based tracking telemetry and command technology （STT ＆ C）. This paper progresses the Low Earth Orbit （LEO） Satellite determination with the method of STT ＆ C which are base on Tracking and Data Relay Satellite System （TDRSS）, and discusses time segment of LEO when it is coved with TDRSS. The paper also designs a non-line iterative differential algorithm on orbit determination based on the improved Gauss-Newton algorithm, and the algorithm can effectively restrain the interceptive error. The estimation experiments prove that the STT ＆ C technology which is based on TDRSS can enormously enhance overlay rate of TT ＆ C, allay the tension of ground control station, and heighten the resource of LEO and MEO at the same time. The algorithm designed in this paper can determinate the orbit of LEO effectively, which orbit position error is within m, and velocity error is within m/s.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2006年第B12期50-55,共6页
Journal of Astronautics
基金
航天支撑技术基金（2006-HT-GFKD-02）
