Results 21 to 30 of about 62,582 (219)
In-flight Lift and Drag Estimation of an Unmanned Propeller-Driven Aircraft
Aerospace, 2021 The high-power density and good scaling properties of electric motors enable new propulsion arrangements and aircraft configurations. This results in distributed propulsion systems allowing to make use of aerodynamic interaction effects between ...
Dominique Paul Bergmann +5 more
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STUDY ON SAFETY TECHNOLOGY SCHEME OF THE UNMANNED HELICOPTER [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 Nowadays the unmanned helicopter is widely used for its' unique strongpoint, however, the high failure rate of unmanned helicopter seriously limits its further application and development.
Z. Lin +4 more
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Below Horizon Aircraft Detection Using Deep Learning for Vision-Based Sense and Avoid
, 2019 Commercial operation of unmanned aerial vehicles (UAVs) would benefit from an onboard ability to sense and avoid (SAA) potential mid-air collision threats. In this paper we present a new approach for detection of aircraft below the horizon.
Ford, Jason J. +2 more
core +1 more source
IEEE AccessThis study proposes a frequency-domain diagnostic approach for detecting and characterizing unmanned aerial vehicle (UAV) propeller damage using only motor electrical signals. Motor current signals were analyzed via fast Fourier transform (FFT) across 36
Giho Lee +5 more
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Building Evidence the Federal Aviation Administration's UAS Safety Strategy Needs Improvement
International Journal of Aviation, Aeronautics, and Aerospace, 2018 The growth of unmanned aircraft operations within the National Airspace System (NAS) reveal an uptick of alarming safety indicators that suggest unmanned aircraft system (UAS) regulatory policy may require adjustment.
Ryan J Wallace +2 more
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Sistem Kontrol Pesawat Tanpa Awak Untuk Menentukan Waypoint Berbasis Ardupilot
Quantum Teknika, 2021 An unmanned Aerial Vehicle (UAV) is a type of unmanned aerial vehicle which is controlled by a remote system. This type of aircraft is usually controlled by remote control from outside the plane and can also move automatically based on a program that has
Putri Rachmawati, Muhammad Haydar Asyam
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Unmanned Free Balloon Flight’s Integration into Unmanned Aircraft System Traffic Management
Acta Technica Jaurinensis, 2019 This paper describes and inspects unmanned aerial vehicle, unmanned aircraft system, unmanned aircraft system traffic management, light and medium unmanned free balloons.
Norbert Hegyi, János Jósvai
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Prognostics for Autonomous Electric-Propulsion Aircraft
International Journal of Prognostics and Health Management, 2021 An autonomous unmanned aerial system (UAS) needs, during the flight, accurate information about the current failure state of the aircraft and its capabilities in order to safely perform its mission and properly react to contingencies.
Johann Schumann +5 more
doaj +1 more source
Unmanned Aerial Vehicles (UAVs) in environmental biology: A Review [PDF]
, 2018 Acquiring information about the environment is a key step during each study in the field of environmental biology at different levels, from an individual species to community and biome.
Bogawski, Pawel +2 more
core +2 more sources
Unmanned Aerial Systems for Wildland and Forest Fires
, 2021 Wildfires represent an important natural risk causing economic losses, human death and important environmental damage. In recent years, we witness an increase in fire intensity and frequency.
Akhloufi, Moulay A. +2 more
core +1 more source