An autonomous navigation scheme based on starlight, geomagnetic and gyros with information fusion for small satellites

被引：19

作者：

Wang, Xinlong ^{[1
]}

Zhang, Qing ^{[1
]}

Li, Hengnian ^{[2
]}

机构：

[1] Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China

[2] Xian Satellite Control Ctr, State Key Lab Astronaut Dynam, Xian 710043, Peoples R China

来源：

ACTA ASTRONAUTICA | 2014年 / 94卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Autonomous navigation; Small satellites; Geomagnetic field; Star sensors; Gyros; High precision; FIELD;

D O I：

10.1016/j.actaastro.2013.09.004

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

To improve the precision of autonomous navigation for small satellites, an innovative integrated navigation scheme based on starlight, geomagnetic and gyros is proposed. The accurate starlight vectors measured by star sensors can make up the inaccuracy of gyros and magnetometers, and the real-time information exported by gyros can compensate the shortcoming of low date rate in star sensors. The integrated system model is deduced and established with orbital dynamics, attitude kinematics and measurement models, and the information fusion algorithm based on self-adaptive Extended Kalman Filter (EKF) is applied to get high accurate navigation parameters. Simulation results demonstrate that this autonomous navigation scheme can achieve high accurate position, velocity and attitude, which can improve the precision for small satellites. Crown Copyright (C) 2013 Published by Elsevier Ltd. on behalf of IAA All rights reserved.

引用

页码：708 / 717

页数：10

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