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科研机构
国家空间科学中心 [1]
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会议论文 [1]
发表日期
2012 [1]
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空间技术 [1]
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AUTONOMOUS INTEGRATED NAVIGATION USING X-RAY PULSARS AND ASTEROIDS
会议论文
63rd International Astronautical Congress 2012, IAC 2012, Naples, Italy, 2012
Yang Chengwei
;
Gao Dong
;
Zheng Jianhua
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提交时间:2014/04/30
To improve the navigation performance of the spacecraft during interplanetary cruise
a novel integrated navigation system is proposed. For X-ray pulsar navigation (XNAV) is a hot and prospective research subject
and the optical navigation using asteroids is practical in space engineering
we designed an autonomous navigation system using one X-ray detector and one navigation camera. The measurement models of the XNAV based on the time difference of arrival and the optical navigation based on the images of asteroids are presented. To enhance practicality
the X-ray pulsars and asteroids are observed by turns. The batch least square filter
used by Deep Space I
is adopted to estimate the system state. The numerical simulation results show that the integrated navigation is feasible on the interplanetary cruise orbit. Moreover
compared with the XNAV and the optical navigation
the integrated navigation system can provide higher navigation performance.
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