Results 31 to 40 of about 12,722 (205)
Intelligent Covert Satellite Communication for Military Robot Swarm [PDF]
IEEE Access, 2020 Military robot swarm becomes more and more important for contemporary military application. In order to satisfy sophisticated application scenarios, novel communication architecture for military robot swarm has to be conceived. In this paper, we propose a multi-carrier intelligent covert satellite communication (MCICSC) architecture based on ...
Chaofan Chen +5 more
openaire +2 more sources
, 2010 Since the 1980's it has been becoming increasingly clear that the Solar System's irregular satellites are collisionally evolved. We derive a general model for the collisional evolution of an irregular satellite swarm and apply it to the Solar System and ...
Agnor +72 more
core +1 more source
Journal of Space Weather and Space ClimateThe Equatorial Electrojet (EEJ) is a spatially localized electric current in the ionospheric dynamo region, flowing along the magnetic dip equator at an altitude of about 110 km, mainly on the dayside.
Olsen Nils +3 more
doaj +1 more source
Tandem Observations of Nighttime Mid‐Latitude Topside Ionospheric Perturbations
Space Weather, 2023 Nighttime medium‐scale traveling ionospheric disturbances (MSTIDs) have been generally observed by ground‐based instruments. However, they provide 2‐dimensional images over only a limited field of view and are not distributed globally.
Hosub Song +6 more
doaj +1 more source
A Community-Based Construct Method for an Inter-Satellite Communication Network of Satellite Swarm
Entropy, 2023 An inter-satellite communication network of satellite swarm (ICNS) is created if the members of a satellite swarm communicate with each other via inter-satellite links (ISLs). ICNS can be constructed using the theory of complex networks. A link community is defined as two satellites between which the ISL has been established. The satellite swarm, whose
Weicheng Lun, Qun Li, Can Zhang, Zhi Zhu
openaire +3 more sources
Self-organising satellite constellation in geostationary Earth orbit [PDF]
, 2015 This paper presents a novel solution to the problem of autonomous task allocation for a self-organizing satellite constellation in Earth orbit. The method allows satellites to cluster themselves above targets on the Earth’s surface.
Colombo, Camilla +3 more
core +1 more source
An Integrated Framework for Sensing Radio Frequency Spectrum Attacks on Medical Delivery Drones
, 2020 Drone susceptibility to jamming or spoofing attacks of GPS, RF, Wi-Fi, and operator signals presents a danger to future medical delivery systems. A detection framework capable of sensing attacks on drones could provide the capability for active responses.
Kulp, Philip H., Mei, Nagi
core +1 more source
The First Comparison Between Swarm-C Accelerometer-Derived Thermospheric Densities and Physical and Empirical Model Estimates [PDF]
, 2018 The first systematic comparison between Swarm-C accelerometer-derived thermospheric density and both empirical and physics-based model results using multiple model performance metrics is presented.
Carter, Brett +2 more
core +2 more sources
SLR, GRACE and Swarm Gravity Field Determination and Combination
Remote Sensing, 2019 Satellite gravimetry allows for determining large scale mass transport in the system Earth and to quantify ice mass change in polar regions. We provide, evaluate and compare a long time-series of monthly gravity field solutions derived either by ...
Ulrich Meyer +6 more
doaj +1 more source
Communication protocol for a satellite-swarm interferometer
, 2023 Orbiting low frequency antennas for radio astronomy (OLFAR) that capture cosmic signals in the frequency range below 30MHz could provide valuable insights on our Universe. These wireless swarms of satellites form a connectivity graph that allows data exchange between most pairs of satellites.
Nagy, Oliver +4 more
openaire +4 more sources