摘要
针对地球同步卫星(GEO)轨道面变化缓慢且能知道较准确近似值的特点,提出了镜面投影法。它以轨道面作对称面(镜面),将原观测站投影生成虚拟观测站;利用原站星距构成虚拟观测值。原观测值与虚拟观测值联合用于轨道参数估计,可以大大地增强观测几何结构,改善法方程状态,提高参数估值的精度。仿真计算的结果表明,新方法的效果明显。
A new approach named the mirror surface projection method is proposed, may be utilized to determinate the orbit of a GEO satellite precisely. It sets the orbital plane of the GEO satellite as the symmetry plane（or the mirror surface）, the original observation stations as the virtual observation stations by projection; the distances from the original stations to the GEO satellite are used to constitute the virtual observation values. The simulating computations indicate that the effect of the new method obviously excel that of the existing method in the precision of the orbit determination.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2007年第11期975-979,997,共6页
Geomatics and Information Science of Wuhan University
基金
国家863计划资助项目
国家自然科学基金资助项目(40474009
40674012)
关键词
地球同步卫星(GEO)
精密定轨
轨道参数估计
镜面投影法
geostationary satellite
precision orbit determination
estimate of the trajectory parameters
mirror surface projection method（MPM）
