Results 41 to 50 of about 4,176 (173)
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
Legal regulation of unmanned aircraft systems in the European Union with reference to the legislation of the Republic of Croatia [PDF]
Zbornik Radova: Pravni Fakultet u Novom Sadu, 2019 Unmanned aircrafts are rapidly developing, and they are becoming more widespread. The number of unmanned aircraft users is increasing, and it is necessary to harmonise the existing legislation at the EU level and amend the regulatory framework ...
Činčurak-Erceg Biljana M.
doaj
Directive Antenna Clutter Loss in Slant Paths
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This paper investigates the development of a clutter loss model specifically for slant paths involving directive antennas. Conventionally, clutter loss is characterized by using isotropic antennas to facilitate standard link budget calculations via single antenna gain values.
Fernando Pérez Fontán +4 more
wiley +1 more source
Design and simulation of GPS assisted smart antenna for Unmanned Aerial Vehicle (UAV)
ACI Avances en Ciencias e Ingenierías, 2013 A critical component of an Unmanned Aerial Vehicle (UAV) is the communications system. It is in charge of transmitting information from the aircraft to the base station and sending configurations to the aircraft.
Francisco Cuesta, René P. Játiva E.
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Unmanned Aircraft Systems: A Latin American Review and Analysis from the Colombian Context
Applied Sciences, 2023 The usage of unmanned aircraft systems to complete routine, commercial, and industrial tasks has increased throughout the world, evidencing better profitability and reducing risks for operators.
Gabriel J. Sánchez-Zuluaga +4 more
doaj +1 more source
Formal Approach to Safety‐Driven Dynamic Procedure Modeling
Systems Engineering, EarlyView.ABSTRACT Ensuring the safety of unmanned aerial systems (UAS) is a growing concern as the number of UAS grows increasingly fast. Regulatory bodies are in the process of tackling this problem by issuing standards and recommendations to be met by UAS designers.
Jean‐Charles Chaudemar +3 more
wiley +1 more source
UAV Path Prediction for CD&R to Manned Aircraft in a Confined Airspace for Cooperative Mission
International Journal of Aerospace Engineering, 2018 In this paper, a new path prediction approach for unmanned aerial vehicles (UAVs) for conflict detection and resolution (CD&R) to manned aircraft in cooperative mission in a confined airspace is proposed.
Chin E. Lin, Ya-Hsien Lai
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Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects
Wildlife Biology, EarlyView.Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer +8 more
wiley +1 more source
Research with Collaborative Unmanned Aircraft Systems
, 2010 We provide an overview of ongoing research which targets development of a principled framework for mixed-initiative interaction with unmanned aircraft systems (UAS). UASs are now becoming technologically mature enough to be integrated into civil society.
Doherty, Patrick +4 more
openaire +4 more sources
VIBROACOUSTIC SYSTEM FOR MEASUREMENT OF THE TOUCHDOWN OF A LIGHT AIRCRAFT [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2017 Aircraft touchdown is one of the most difficult and dangerous phases of a flight. The paper presents an aerial light aircraft, prepared and produced by vibroacoustic tests, using an aircraft landing and landing monitoring system (AVI).
Damian SALA +3 more
doaj +1 more source