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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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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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
Temporary Laser Inter-Satellite Links in Free-Space Optical Satellite Networks [PDF]
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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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
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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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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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Open Astronomy, 2022 This article presents a study on the design of high-speed inter-satellite links for the global navigation satellite system, which consists of 24 middle earth orbit, 3 inclined geosynchronous orbit, 3 geostationary orbit satellites, and 4 typical ground ...
Liu Canyou +5 more
doaj +1 more source
Performance Analysis of DPSK Optical Communication for LEO-to-Ground Relay Link Via a GEO Satellite
Journal of Astronomy and Space Sciences, 2020 Satellite optical communication has gained significant attention owing to its many quality features (e.g., a larger bandwidth, license free spectrum, higher data rate, and better security) compared to satellite microwave communication.
Hyung-Chul Lim +5 more
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