Influence of station density and multi-constellation GNSS observations on troposphere tomography [PDF]
Annales Geophysicae, 2019 Troposphere tomography, using multi-constellation observations from global navigation satellite systems (GNSSs), has become a novel approach for the three-dimensional (3-D) reconstruction of water vapour fields.
Q. Zhao, K. Zhang, K. Zhang, W. Yao
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A delay model for satellite constellation networks with inter-satellite links [PDF]
, 2009 Within this paper we examine a non-geostationary satellite constellation network with inter-satellite links (ISLs) for global air traffic control (ATC) and air passenger communication (APC).
Romain Hermenier +5 more
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Intelligent Load Balancing Algorithm of Mega Constellation
天地一体化信息网络, 2023 To overcome the local traffic congestion caused by the huge number of satellites in mega-constellation, a load balancing algorithm based on multi-agent deep reinforcement learning was proposed.Firstly, the satellites in the mega constellation were ...
Shuxin LUO +3 more
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Differential Code Bias Estimation using Multi-GNSS Observations and Global Ionosphere Map [PDF]
, 2014 Measurements of Global Navigation Satellite System (GNSS) receivers are affected by systematic offsets re- lated to group and phase delays of the signal generation and processing chain.
Hauschild, André +3 more
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Map-Assisted Constellation Design for mmWave WDM With OAM in Short-Range LOS Environment
IEEE Open Journal of the Communications Society, 2023 We consider a system that integrates positioning and single-user millimeter wave (mmWave) communication, where the communication part adopts wavelength division multiplexing (WDM) and orbital angular momentum (OAM).
Yuan Wang +3 more
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An Efficient Codebook Design for Uplink SCMA
IEEE Access, 2020 Sparse code multiple access (SCMA) is one of the most intensively investigated non-orthogonal multiple access (NOMA) techniques for the fifth generation communication (5G) system. In this paper, a new multi-stage optimization approach for codebook design
Mengyao Gao +3 more
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Multi-objective optimisation of constellation deployment using low-thrust propulsion [PDF]
, 2016 This work presents an analysis of the deployment of future constellations using a com-bination of low-thrust propulsion and natural dynamics. Different strategies to realise the transfer from the launcher injection orbit to the constellation operational ...
Vasile, Massimiliano +2 more
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Fast Multiple Fault Detection and Exclusion (FM-FDE) Algorithm for Standalone GNSS Receivers
IEEE Open Journal of the Communications Society, 2021 Numerous applications and devices use Global Navigation Satellite System (GNSS)-provided position, velocity and time (PVT) information. However, unintentional interference and malicious attacks render GNSS-provided information unreliable.
Kewei Zhang, Panos Papadimitratos
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Solar Physics in the 2020s: DKIST, Parker Solar Probe, and Solar Orbiter as a Multi-Messenger Constellation [PDF]
, 2023 The National Science Foundation (NSF) Daniel K. Inouye Solar Telescope (DKIST) has started operations at the summit of Haleakalā (Hawai'i). DKIST joins the nominal science phases of the NASA and ESA Parker Solar Probe and Solar Orbiter encounter missions.
Ko, Y. K. +23 more
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A novel design on multi-layer satellite constellation network
上海师范大学学报. 自然科学版, 2016 With the increasing demand of space technology,the traditional single layer satellite constellation network is restricted in the development of future space technology because of its simple structure.For this reason,more and more researchers have carried
LI Lianqiang +4 more
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