Results 21 to 30 of about 18,773 (179)
GNSS jamming resilience for close to shore navigation in the Northern Sea [PDF]
, 2016 avigational error accounts for half of the accidents and serious incidents in close to shore maritime transport in Norway predominantly due to the rapidly changing weather conditions and the dangerous nature of the narrow inshore waters found along the ...
Bonenberg, Lukasz, Glomsvoll, Oeystein
core +1 more source
Multi-Ground Station Collaborative Measurement and Control Technology for Giant Constellation System
天地一体化信息网络, 2023 Measurement and control technology is the key technology to ensure the effi cient operation, maintenance and management of the constellation system.In recent years, with the continuous expansion of the constellation scale, mega-constellation system has ...
Yang LIU +5 more
doaj +2 more sources
Applied Sciences, 2020 The received global navigation satellite system (GNSS) signal has a very low power due to traveling a very long distance and to the nature of the signal’s propagation medium. Thus, GNSS signals are easily susceptible to signal interference.
Haidy Elghamrawy +3 more
doaj +1 more source
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
doaj +1 more source
A new approach for optimising GNSS positioning performance in harsh observation environments [PDF]
, 2014 Maintaining good positioning performance has always been a challenging task for Global Navigation Satellite Systems (GNSS) applications in partially obstructed environments.
Alan Dodson +10 more
core +3 more sources
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
doaj +1 more source
Research on Satellite Selection Strategy for Receiver Autonomous Integrity Monitoring Applications
Remote Sensing, 2021 Satellite selection is an effective way to overcome the challenges for the processing capability and channel limitation of the receivers due to superabundant satellites in view.
Huibin Wang +4 more
doaj +1 more source
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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Performance assessment of GPS/GLONASS single point positioning in an urban environment [PDF]
, 2013 In signal-degraded environments such as urban canyons and mountainous area, many GNSS signals are either blocked or strongly degraded by natural and artificial obstacles.
Angrisano, A., Gaglione, S., Gioia, C.
core +1 more source
Sensors, 2018 Vehicles driving in urban canyons are always confronted with a degraded Global Navigation Satellite System (GNSS) signal environment. The surrounding obstacles may cause signal reflections or blockages, which lead to large multipath noises and ...
Wei Li +4 more
doaj +1 more source