摘要
本文从最优估计角度研究短弧资料定初轨问题，提出一种最小二乘估计算法，同时提出一种符合实用的参考矢量法．仿真结果显示，参考矢量法克服了现有初轨算法所承受病态影响，把定轨精度提高到接近最佳水平．
In this paper the problem of determination of the initial orbit using short-arcobservations is inveshgated from the view point of optimal estimation. Besides, a newleast square algorithm and a new reference vector algorithm, which is applicable toengineering, are presented. The simulated results presented in the paper show that thereference vector algorithm can eliminate the influence of the ill-condition, whichdecreases the accuracy of the known initial orbit algorithm, and that it can raise theaccuracy to neariy optimal level.
出处
《天文学报》
CSCD
北大核心
1997年第4期353-358,共6页
Acta Astronomica Sinica
基金
国家自然科学基金
