The Design and Maintenance of Low-Orbit Navigation Constellation for Traffic Control in a Smart City

doi:10.3390/s22239478

	The Design and Maintenance of Low-Orbit Navigation Constellation for Traffic Control in a Smart City
	Zheng, Yi 1,2; Lin, Baojun1,2,3,4,5 ; Li, Rui 1,3,4; Liu, Yutong 6
	2022-12-01
发表期刊	SENSORS
EISSN	1424-8220
卷号	22 期号:23
发表状态	已发表
DOI	10.3390/s22239478
摘要	The traffic control issue in the smart city scenario gives rise to the higher requirements of Global Navigation Satellite System (GNSS) services, especially in terms of navigation accuracy, together with coverage continuity, and multiplicity. The dense urban environment leads to higher elevation angles for navigation in such areas, which requires a lower altitude of the constellation, as well as a larger number of satellites. In the existing literature, the design and maintenance of the Low Earth Orbit (LEO) navigation constellation that fulfills the requirements of the smart city are not provided. Hence, based on the requirements and constraints of the smart city scenario, this article studies the relation between orbital height, user elevation angle, and coverage. It designs the configuration of an LEO navigation constellation that not only achieves global sensing coverage, but also provides a continuous lane-level navigation service with multiple coverages for the key area. In addition, considering the atmospheric drag in low orbits and the constraint of satellite power and attitude control, a method is proposed by rotating solar panels to change the effective frontal area of the satellite to achieve relative configuration maintenance of the LEO constellation. The results show that the LEO navigation constellation has a 0 s revisit time in five chosen smart cities, and each city has more than four-times coverage every second; the Geographic Dilution of Precision (GDOP) values of five cities are smaller than 0.47. The average navigation accuracy of five cities is 2.01. With the conduction of the one-year station-keeping simulation, the phase deviation of two satellites is less than 0.6 degrees and it gradually converges to 0.1 degrees, where the semi-major axis deviation is less than 80 m. With our proposed method, the active station-keeping control is not needed in one year, and the fuel consumption can be reduced. Finally, the continuity of the navigation service can be assured.
关键词	smart city traffic control LEO satellite navigation constellation atmospheric drag station keeping
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收录类别	SCI ; EI
语种	英语
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:000896479800001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/266591
专题	信息科学与技术学院_特聘教授组_林宝军组
通讯作者	Lin, Baojun
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100094, Peoples R China 3.Chinese Acad Sci, Innovat Acad Microsatellites, Shanghai 201210, Peoples R China 4.Shanghai Engn Ctr Microsatellites, Shanghai 201304, Peoples R China 5.Shanghai Tech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China 6.Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Shanghai 200240, Peoples R China
通讯作者单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Zheng, Yi,Lin, Baojun,Li, Rui,et al. The Design and Maintenance of Low-Orbit Navigation Constellation for Traffic Control in a Smart City[J]. SENSORS,2022,22(23).
APA	Zheng, Yi,Lin, Baojun,Li, Rui,&Liu, Yutong.(2022).The Design and Maintenance of Low-Orbit Navigation Constellation for Traffic Control in a Smart City.SENSORS,22(23).
MLA	Zheng, Yi,et al."The Design and Maintenance of Low-Orbit Navigation Constellation for Traffic Control in a Smart City".SENSORS 22.23(2022).