Availability Analysis of GNSS Signal in High Orbit

Global navigation satellite system (GNSS) has the characteristics of strong autonomy, high real-time, high positioning accuracy and low cost, and it has been widely used by ground, low earth orbit (LEO) and medium earth orbit (MEO) users. However, in the high orbit environment, the availability of G...

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Autor principal:	Lu Kewen,Wang Xinlong,Shen Liangliang,Cai Yuanwen,Chen Ding
Formato:	article
Lenguaje:	ZH
Publicado:	Editorial Office of Aero Weaponry 2021
Materias:	\|gnss\|high orbit satellite\|visibility\|doppler frequency shift and its rate of change\|geome-tric dilution of precision Motor vehicles. Aeronautics. Astronautics TL1-4050
Acceso en línea:	https://doaj.org/article/dc100a88bb6f4e1aaeaaf32a1d9c50b2
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id	oai:doaj.org-article:dc100a88bb6f4e1aaeaaf32a1d9c50b2
record_format	dspace
spelling	oai:doaj.org-article:dc100a88bb6f4e1aaeaaf32a1d9c50b22021-11-30T00:13:57ZAvailability Analysis of GNSS Signal in High Orbit1673-504810.12132/ISSN.1673-5048.2020.0040https://doaj.org/article/dc100a88bb6f4e1aaeaaf32a1d9c50b22021-02-01T00:00:00Zhttp://www.aeroweaponry.avic.com/fileup/1673-5048/PDF/1616466885322-634313617.pdfhttps://doaj.org/toc/1673-5048Global navigation satellite system (GNSS) has the characteristics of strong autonomy, high real-time, high positioning accuracy and low cost, and it has been widely used by ground, low earth orbit (LEO) and medium earth orbit (MEO) users. However, in the high orbit environment, the availability of GNSS signal is greatly limited due to the earth’s blocking and the increase of signal’s transmission distance, which restricts the application and development of GNSS in the autonomous navigation of high orbit satellites. Aiming at the unknown problem of GNSS signal’s availability in high orbit, the availability of GNSS signal in high orbit is systematically analyzed from the aspects of GNSS satellite’s visibility, Doppler frequency shift and its rate of change, geometric dilution of precision, etc. Based on the characteristics of GNSS link propagation, the spatial coverage characteristics and strength distribution characteristics of GNSS signal in high orbit are analyzed, and then the visibility of GNSS satellites in high orbit is evaluated. The effects of Doppler frequency shift and its rate of change on the performance of signal acquisition and tracking are explored by using the acquisition model and the phase-locked loop model, and geometric dilution of precision of different GNSS combinations and their changes are quantitatively calculated.Lu Kewen,Wang Xinlong,Shen Liangliang,Cai Yuanwen,Chen DingEditorial Office of Aero Weaponryarticle\|gnss\|high orbit satellite\|visibility\|doppler frequency shift and its rate of change\|geome-tric dilution of precisionMotor vehicles. Aeronautics. AstronauticsTL1-4050ZHHangkong bingqi, Vol 28, Iss 1, Pp 77-86 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	\|gnss\|high orbit satellite\|visibility\|doppler frequency shift and its rate of change\|geome-tric dilution of precision Motor vehicles. Aeronautics. Astronautics TL1-4050
spellingShingle	\|gnss\|high orbit satellite\|visibility\|doppler frequency shift and its rate of change\|geome-tric dilution of precision Motor vehicles. Aeronautics. Astronautics TL1-4050 Lu Kewen,Wang Xinlong,Shen Liangliang,Cai Yuanwen,Chen Ding Availability Analysis of GNSS Signal in High Orbit
description	Global navigation satellite system (GNSS) has the characteristics of strong autonomy, high real-time, high positioning accuracy and low cost, and it has been widely used by ground, low earth orbit (LEO) and medium earth orbit (MEO) users. However, in the high orbit environment, the availability of GNSS signal is greatly limited due to the earth’s blocking and the increase of signal’s transmission distance, which restricts the application and development of GNSS in the autonomous navigation of high orbit satellites. Aiming at the unknown problem of GNSS signal’s availability in high orbit, the availability of GNSS signal in high orbit is systematically analyzed from the aspects of GNSS satellite’s visibility, Doppler frequency shift and its rate of change, geometric dilution of precision, etc. Based on the characteristics of GNSS link propagation, the spatial coverage characteristics and strength distribution characteristics of GNSS signal in high orbit are analyzed, and then the visibility of GNSS satellites in high orbit is evaluated. The effects of Doppler frequency shift and its rate of change on the performance of signal acquisition and tracking are explored by using the acquisition model and the phase-locked loop model, and geometric dilution of precision of different GNSS combinations and their changes are quantitatively calculated.
format	article
author	Lu Kewen,Wang Xinlong,Shen Liangliang,Cai Yuanwen,Chen Ding
author_facet	Lu Kewen,Wang Xinlong,Shen Liangliang,Cai Yuanwen,Chen Ding
author_sort	Lu Kewen,Wang Xinlong,Shen Liangliang,Cai Yuanwen,Chen Ding
title	Availability Analysis of GNSS Signal in High Orbit
title_short	Availability Analysis of GNSS Signal in High Orbit
title_full	Availability Analysis of GNSS Signal in High Orbit
title_fullStr	Availability Analysis of GNSS Signal in High Orbit
title_full_unstemmed	Availability Analysis of GNSS Signal in High Orbit
title_sort	availability analysis of gnss signal in high orbit
publisher	Editorial Office of Aero Weaponry
publishDate	2021
url	https://doaj.org/article/dc100a88bb6f4e1aaeaaf32a1d9c50b2
work_keys_str_mv	AT lukewenwangxinlongshenliangliangcaiyuanwenchending availabilityanalysisofgnsssignalinhighorbit
_version_	1718406893528940544

Availability Analysis of GNSS Signal in High Orbit

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