Results 131 to 140 of about 62,073 (218)
Platoon control design for unmanned surface vehicles subject to input delay. [PDF]
Sci Rep, 2021 Liang X, Zhang Y, Yang G.
europepmc +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu +7 more
wiley +1 more source
Autonomous Navigation of a Team of Unmanned Surface Vehicles for Intercepting Intruders on a Region Boundary. [PDF]
Sensors (Basel), 2021 Marzoughi A, Savkin AV.
europepmc +1 more source
TPS design for aerobraking at Earth and Mars [PDF]
An investigation was made to determine the feasibility of using an aerobrake system for manned and unmanned missions to Mars, and to Earth from Mars and lunar orbits. A preliminary thermal protection system (TPS) was examined for five unmanned small nose
Curry, D. M. +3 more
core +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley +1 more source
Rapid global path planning algorithm for unmanned surface vehicles in large-scale and multi-island marine environments. [PDF]
PeerJ Comput Sci, 2021 Wang D, Zhang J, Jin J, Liu D, Mao X.
europepmc +1 more source
Study of Unmanned Systems to Evaluate the Martian Environment. Volume IV - Summary [PDF]
Unmanned space mission to determine Martian environmental factors influencing design of systems for manned space mission to Mars - summary ...
Dergarabedian, P., Sohn, R. L.
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International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada +4 more
wiley +1 more source
Next generation earth-to-orbit space transportation systems: Unmanned vehicles and liquid/hybrid boosters [PDF]
The United States civil space effort when viewed from a launch vehicle perspective tends to categorize into pre-Shuttle and Shuttle eras. The pre-Shuttle era consisted of expendable launch vehicles where a broad set of capabilities were matured in a ...
Hueter, Uwe
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Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain
Wildlife Biology, EarlyView.Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund +3 more
wiley +1 more source