摘要
从非参数统计角度,在仅有观测资料而没有其它信息的情况下,分别给出了初轨计算的精度和置信区间的估计方法.该方法基于bootstrap方法,仅依赖于观测资料,不需要精密定轨结果作为参考,也无需假设观测资料误差呈正态分布,并且对各种初轨计算方法均适用.数值计算结果表明该方法应用简便,可作为初轨的评估和后续应用的重要参考.
From the point of view of the non-parametric statistics, a general estimation method of accuracy and confidence interval of the preliminary orbit determination is proposed for the occasion without any other information. The method, based on the bootstrap method, employs only observation data with minimal assumptions about the distributions of observational noise and does not require the result of precise orbit determination as a reference. Numerical check shows that the method is very easy in implementation, and the estimation result is beneficial for both the evaluation of accuracy and follow-up inference.
出处
《天文学报》
CSCD
北大核心
2013年第1期73-78,共6页
Acta Astronomica Sinica
关键词
航天器
天体力学
方法
统计
space vehicles, celestial mechanics, inethods： statistical
