1) Initial orbit
初轨
1.
A robust algorithm of the initial orbit determination based on angular observation including some outliers is presented in this paper.
讨论单测角资料 (数据中包含异常值 )初轨的稳健估计算法 。
2.
In this paper, the problem of initial orbit determination is discussed with nonlinear programming method.
本文用非线性规划方法探讨了初轨确定问题。
3.
In this paper, the optimal accuracy and quasi--optimal algorithm of determining the initial orbit solely with the short-arc measuring angle is investigated on the basis of the theory of optimal statistics.
从最优估计的角度，研究短弧测角资料初轨计算的最佳精度及准最佳精度算法。
2) Initial orbit determination
初轨计算
1.
In this paper,initial orbit determination for satellites based on angle measurements is studied.
文中对基于角度量观测的卫星初轨计算技术进行了研究。
3) Preliminary orbit determination algorithm
初轨算法
4) initial orbit determination
初轨确定
1.
The paper proposes a new method of precise initial orbit determination by m s sample data.
经仿真计算表明 :该方法所计算的初轨 ,在一定随机误差和系统误差内 ,基本满足实时性和精度要求 ,是一种较为有效的初轨确定方法。
2.
Initial orbit determination of the uncorrelated targets is important in the space surveillance mission.
空间目标监视任务中,非相关目标的初轨确定具有重要意义。
3.
Based on the analysis on the characteristic of the surveillance data of the space object by space-based optical sensor, the concept of the Admissible Region and the idea of the triangulation are introduced to solve the problem of the initial orbit determination with too short arcs.
针对天基光学空间目标监视的超短弧段测量数据特点,引入弧段测量约束域概念和域内三角剖分以解决短弧初轨确定问题。
5) initial orbit
初始轨道
1.
An optimal selection algorithm based on grey relational analysis is proposed to select the optimal group from multiple groups of satellite initial orbits,which are determined via various data sources by Space TT&C(Tracking,Telemetry and Command) Center.
针对航天测控中心利用各种数据源确定的多组初始轨道如何选优问题,提出了一种基于灰色关联分析的卫星初始轨道选优算法。
2.
Theoretical analysis was proposed in the optimal selection of spacecraft initial orbits during the orbit injection phase,and an algorithm based on grey relational analysis was proposed to select the optimal initial orbit.
针对航天器入轨段,如何从多组初始轨道中选择一组最优轨道问题,进行了深入地理论分析,提出了一种基于灰色关联分析法的航天器初始轨道选优算法。
6) original locus
初始轨迹
补充资料：初轨确定
用少量观测数据粗略确定航天器轨道的过程，主要用于刚入轨或初次捕获的航天器的定轨。通过初轨确定可以迅速提供航天器运动的粗略情况，为轨道改进提供初值。初轨确定是轨道确定的一项基本内容。初轨确定的方法主要有拉普拉斯方法（初值问题方法）、高斯方法(边值问题方法)和巴特拉科方法。拉普拉斯方法根据观测数据解出初轨中一点的位置和速度，再用它们的分量求出轨道要素。高斯方法根据观测数据解出初轨中2个点的位置或速度，进一步求出轨道要素。巴特拉科方法在高斯方法基础上作了改进,先确定轨道周期,用增加观测数据的方法消除时间记录误差，以提高定轨精度。采用哪一种方法取决于观测数据的数量和种类。现代测量精度已大为提高，利用高速电子计算机可以进行复杂的迭代计算，因此轨道确定对初轨确定的精度要求可以适当降?停灰斓栏慕蠼馐蹦苁樟簿涂梢粤恕Ｓ惺币怖迷嗽仄髦鞫蔚脑硕问慈范ǔ豕臁Ｔ谠嗽仄鞯闹频季冉细呤保杓频睦砺酃斓酪部梢宰魑豕臁?
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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