GNSS autonomous navigation method for HEO spacecraft

袁德虎; Sun Jun; Han Fei; Chen Yang; Chen Yun

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GNSS autonomous navigation method for HEO spacecraft

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摘要

For global navigation satellite system(GNSS)in the application of high earth orbit(HEO)determination,there are problems such as small number of visible satellites and weak signal magnitude.The transmitting and receiving errors of GNSS signal in the environment of HEO space are analyzed,and related compensating scheme is also proposed.Acquisition of GNSS signal is implemented by using weak signal acquisition technology based on Duffing.Precise tracking of weak GNSS signal is also realized by adopting dynamic detection and compensation technology based on Duffing chaotic oscillator.Simulation results show that,certain acquisition sensitivity and navigation precision can be reached,and the acquisition and tracking of weak GNSS signal can be realized by using the proposed technology,which provides good technology support for autonomous navigation of HEO and large elliptical spacecrafts.

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《高技术通讯：英文版》 |2020年第2期|188-195|共8页
作者
袁德虎; Sun Jun; Han Fei; Chen Yang; Chen Yun;
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作者单位

Shanghai Aerospace Control Technology Institute;

Shanghai 201109;

P.R.China;

Shanghai Key Laboratory of Space Intelligent Control Technology;

Shanghai 201109;

P.R.China;

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原文格式 PDF
正文语种 chi
中图分类大地测量学;
关键词
global; navigation; satellite; system(GNSS); high; earth; orbit(HEO); chaotic; oscillator; autonomous; navigation;

GNSS autonomous navigation method for HEO spacecraft

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