航天器工程2019，Vol.5Issue(5)：13-20,8.DOI:10.3969/j.issn.1673-8748.2019.05.003
基于遗传算法的极短弧段天基轨道确定方法
Orbit Determination of Space Targets with Short Arcs Based on Genetic Algorithm
宋可桢 1鄂薇 2魏承 3丁佳欣 3赵阳3
作者信息
- 1. 中国空间技术研究院通信卫星事业部,北京 100094
- 2. 北京空间飞行器总体设计部,北京 100094
- 3. 哈尔滨工业大学航天工程与力学系,哈尔滨 150001
- 折叠
摘要
Abstract
Due to the extremely short observation arc obtained by the space-based optical visibility system using the stellar tracking mode to monitor space target,the classical orbit determination method cannot be understood because of intrinsic morbidity of the solved equation under the con-dition of extremely short arc observation.Aiming at this problem,the genetic algorithm is applied to optimal solve the problem of orbit determination of space target with extremely short arcs.The calculation model of the initial orbit parameter of space target based on genetic algo-rithm is established,and the distribution characteristics of space targets are used to calculate the sub-region therefor narrowing the search range to improve the calculation efficiency and avoids convergence to local optimal solution.Simulation results show that this method can accurately es-timate the initial orbit parameters of the space target by using the space-based extremely short arc observation data,and its orbit determination accuracy is better than Gauss method and the meth- od using the observed skew moment as the optimization variable.This method can not only provide an effective initial value for precise orbit determination but also improve the correlation between multiple short arcs,which provide reference for space target monitoring,tracking and cataloging of space-based optical observation platform.关键词
遗传算法/天基观测/极短弧段/轨道确定Key words
genetic algorithm/space-based observation/short arcs/orbit determination分类
信息技术与安全科学引用本文复制引用
宋可桢,鄂薇,魏承,丁佳欣,赵阳..基于遗传算法的极短弧段天基轨道确定方法[J].航天器工程,2019,5(5):13-20,8.
