| 基于星间链路的多星系统分散定轨算法 |
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| 引用本文： | 曹荣向,张笃周.基于星间链路的多星系统分散定轨算法[J].航天控制,2010,28(1). |
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| 作者姓名： | 曹荣向 张笃周 |
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| 作者单位： | 北京控制工程研究所,北京,100190 |
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| 摘 要： | 介绍了一种基于星间链路信息的多星系统自主导航方法。首先以星间相对位置矢量为观测量建立两星系统的观测方程,采用强跟踪滤波(STF)算法进行集中定轨,获得卫星的参考轨道信息。在此基础上,建立单星的观测方程,然后使用加权最小二乘估计器和卡尔曼滤波器进行单星轨道确定,从而实现了一种不需要长期轨道预报信息的分散定轨算法。数学仿真表明,该算法是可行的,且具有较好的定轨精度。
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| 关 键 词： | 自主导航 星间链路 分散定轨 强跟踪滤波器 加权最小二乘估计器 |
Distributed Orbit Determination for Multi-satellite System Based on Inter-satellite Link |
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| CAO Rongxiang,ZHANG Duzhou.Distributed Orbit Determination for Multi-satellite System Based on Inter-satellite Link[J].Aerospace Control,2010,28(1). |
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| Authors: | CAO Rongxiang ZHANG Duzhou |
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| Institution: | CAO Rongxiang ZHANG DuzhouBeijing Institute of Control Engineering,Beijing 100190,China |
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| Abstract: | An autonomous navigation method for multi-satellite system based on the inter-satellite link is introduced.Firstly,the reference orbits are obtained by the strong tracking filter(STF) algorithm using the measurements of the relative position vector from one satellite to the other.Then the weighted least squares estimator and the Kalman filter are designed to autonomously determine the orbit of one satellite after establishing its observation equations.This algorithm of distributed orbit determination does n... |
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| Keywords: | Autonomous navigation Inter-satellite link Distributed orbit determination STF Weighted least squares estimator |
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