Assignment of hybrid laser and microwave inter-satellite links for navigation satellite systems [PDF]
Scientific ReportsA hybrid network comprising both laser and microwave inter-satellite links (ISLs) has been established within navigation satellite constellations. Leveraging the flexible construction of microwave links and the high ranging accuracy and communication ...
Nan Wang +6 more
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The Availability of Space Service for Inter-Satellite Links in Navigation Constellations [PDF]
Sensors, 2016 Global navigation satellite systems (GNSS) are widely used in low Earth orbit (LEO) satellite navigation; however, their availability is poor for users in medium Earth orbits (MEO), and high Earth orbits (HEO).
Yinyin Tang, Yueke Wang, Jianyun Chen
doaj +5 more sources
Joint Timekeeping of Navigation Satellite Constellation with Inter-Satellite Links [PDF]
Sensors, 2020 As a system of ranging and positioning based on time transfer, the timekeeping ability of a navigation satellite constellation is a key factor for accurate positioning and timing services. As the timekeeping performances depend on the frequency stability
Leyuan Sun +5 more
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Relativistic Time Transfer for Inter-Satellite Links [PDF]
Frontiers in Astronomy and Space Sciences, 2016 Inter-Satellite links (ISLs) will be an important technique for a global navigation satellite system (GNSS) in the future. Based on the principles of general relativity, the time transfer in an ISL is modeled and the algorithm for onboard computation is ...
Yi eXie, Yi eXie, Yi eXie
doaj +2 more sources
LEO Precise Orbit Determination with Inter-satellite Links [PDF]
Remote Sensing, 2019 Traditional precise orbit determination (POD) for low Earth orbit (LEO) satellites relies on observations from ground stations and onboard receivers.
Xingxing Li +5 more
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A Cooperative Routing Scheme Using Inter-Satellite Links to Assist Data Downloading for LEO Satellite Networks [PDF]
Sensors, 2022 Low earth orbit (LEO) satellite networks can provide Internet service to users in areas where cellular networks are difficult to deploy. One critical function of satellites is to transfer data from satellite networks to ground core network through earth ...
Zijian Yang +3 more
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Temporary Laser Inter-Satellite Links in Free-Space Optical Satellite Networks
IEEE Open Journal of the Communications Society, 2022 Laser inter-satellite links (LISLs) between satellites in a free-space optical satellite network (FSOSN) can be divided into two classes: permanent LISLs (PLs) and temporary LISLs (TLs).
Aizaz U. Chaudhry, Halim Yanikomeroglu
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A Space-Based Autonomous Timekeeping Method Based on Onboard Atomic Clocks and Inter-Satellite Measurements [PDF]
SensorsIn global navigation satellite systems (GNSS), the system time reference is maintained by the ground control segment and kept traceable to UTC, enabling inter-system compatibility and interoperability. Advances in onboard atomic-clock stability and inter-
Guangyao Chen +4 more
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Unidirectional Orbit Determination for Extended Users Based on Navigation Ka-Band Inter-Satellite Links [PDF]
SensorsTraditional spacecraft orbit determination primarily employs two methodologies: ground station/survey ship-based orbit determination and global navigation satellite system (GNSS)-based orbit determination.
Yong Shangguan +6 more
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AerospaceIn large-scale satellite constellations, the efficiency of inter-satellite communication is paramount. Traditional topology control strategies, such as the Manhattan configuration, provide stable links but can result in indirect communication paths ...
Yueyi Li +5 more
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