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Isaac Levi Henderson
Registration of unmanned aircraft is a common policy around the world and forms part of the International Civil Aviation Organisation?s model regulations for unmanned aircraft. This study conducts a review of the various registration policies that have b...
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Max Friedrich and Mark Vollrath
The envisioned introduction of autonomous Small Unmanned Aircraft Systems (sUAS) into low-altitude urban airspace necessitates high levels of system safety. Despite increased system autonomy, humans will most likely remain an essential component in assur...
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Ali Aghazadeh Ardebili, Antonio Ficarella, Antonella Longo, Adem Khalil and Sabri Khalil
Autonomous aircraft are the key enablers of future urban services, such as postal and transportation systems. Digital twins (DTs) are promising cutting-edge technologies that can transform the future transport ecosystem into an autonomous and resilient s...
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Maryam Taherinezhad and Alejandro Ramirez-Serrano
A cascade control architecture was proposed for the control of advanced unmanned aerial vehicles targeted for operation inside confined hazardous spaces. The aircraft of interest is a highly maneuverable system presenting highly coupled dynamics, enablin...
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Pappu Kumar Yadav, J. Alex Thomasson, Robert Hardin, Stephen W. Searcy, Ulisses Braga-Neto, Sorin C. Popescu, Roberto Rodriguez III, Daniel E. Martin, Juan Enciso, Karem Meza and Emma L. White
Plastic shopping bags are often discarded as litter and can be carried away from roadsides and become tangled on cotton plants in farm fields. This rubbish plastic can end up in the cotton at the gin if not removed before harvest. These bags may not only...
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Jianyong Zhang, Yanling Zhao, Zhenqi Hu and Wu Xiao
Rapid estimation of above-ground biomass (AGB) with high accuracy is essential for monitoring crop growth status and predicting crop yield. Recently, remote sensing techniques using unmanned aerial systems (UASs) have exhibited great potential in obtaini...
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Ying Hong Pheh, Shane Kyi Hla Win and Shaohui Foong
Even as human?robot interactions become increasingly common, conventional small Unmanned Aircraft Systems (sUAS), typically multicopters, can still be unsafe for deployment in an indoor environment in close proximity to humans without significant safety ...
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Muwanika Jdiobe, Kurt Rouser, Ryan Paul and Austin Rouser
This paper presents an approach to validate a wind tunnel propeller dynamometer applicable to Group 2 unmanned aircraft. The intended use of such a dynamometer is to characterize propellers over a relevant range of sizes and operating conditions, under w...
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Carlo Giorgio Grlj, Nino Krznar and Marko Pranjic
Unmanned Aerial Vehicles have advanced rapidly in the last two decades with the advances in microelectromechanical systems (MEMS) technology. It is crucial, however, to design better power supply technologies. In the last decade, lithium polymer and lith...
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Mariann Merz, Dário Pedro, Vasileios Skliros, Carl Bergenhem, Mikko Himanka, Torbjørn Houge, João P. Matos-Carvalho, Henrik Lundkvist, Baran Cürüklü, Rasmus Hamrén, Afshin E. Ameri, Carl Ahlberg and Gorm Johansen
Emerging precision agriculture techniques rely on the frequent collection of high-quality data which can be acquired efficiently by unmanned aerial systems (UAS). The main obstacle for wider adoption of this technology is related to UAS operational costs...
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Federico Corraro, Gianluca Corraro, Giovanni Cuciniello and Luca Garbarino
Collision Detection and Avoidance is one of the critical technologies for fully allowing Unmanned Aerial Systems to fly in civil airspaces. Current methods evaluate only potential conflicts with other aircraft using specific parameters (e.g., time or dis...
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Bohai Deng and Jinfa Xu
The compound unmanned aircraft is provided with three primary flight modes, which are helicopter flight mode in low forward speed flight, airplane flight mode in high forward speed flight and transition flight mode in middle forward speed flight. For the...
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Darwin Jimenez, Esteban Valencia, Ariel Herrera, Edgar Cando and Marcelo Pozo
Current environmental policies for the aviation sector motivate the use of cleaner propulsion alternatives in order to reduce their CO2 footprint and noise pollution in the coming years. In this context, hybrid propulsion systems have emerged as a potent...
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Xinyu He, Chengpeng Jiang, Lishuai Li and Henk Blom
UAS-based commercial services such as urban parcel delivery are expected to grow in the upcoming years and may lead to a large volume of UAS operations in urban areas. These flights may pose safety risks to persons and property on the ground, which are r...
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Kyusur Jung, Songju Kim, Beechuilla Jung, Seyeon Kim, Hyunwoo Kang and Changbong Kang
Unmanned Aircraft System Traffic Management (UTM) is a traffic management system enabling drones to safely and efficiently fly in low-altitude airspace below 120~150m (400~500ft). UTM provides services such as communication, flight route management, loca...
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Viktor Popov, Sergiy Yepifanov, Yevhenii Kononykhyn and Aleksandr Tsaglov
This article presents the development of the electric turbofan engine in distributed architecture with a design thrust in the range of 3 to 7.5 and from 7.5 to 30 kN for small and medium-sized unmanned aerial vehicles. The engine subsystems are considere...
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Dominique Paul Bergmann, Jan Denzel, Ole Pfeifle, Stefan Notter, Walter Fichter and Andreas Strohmayer
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 individua...
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Victor Alulema, Esteban Valencia, Edgar Cando, Victor Hidalgo and Dario Rodriguez
Despite the increasing demand of Unmanned Aerial Vehicles (UAVs) for a wide range of civil applications, there are few methodologies for their initial sizing. Nowadays, classical methods, mainly developed for transport aircraft, have been adapted to UAVs...
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Daichi Wada, Sergio A. Araujo-Estrada and Shane Windsor
Nonlinear flight controllers for fixed-wing unmanned aerial vehicles (UAVs) can potentially be developed using deep reinforcement learning. However, there is often a reality gap between the simulation models used to train these controllers and the real w...
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Daichi Wada, Sergio A. Araujo-Estrada and Shane Windsor
Deep reinforcement learning is a promising method for training a nonlinear attitude controller for fixed-wing unmanned aerial vehicles. Until now, proof-of-concept studies have demonstrated successful attitude control in simulation. However, detailed exp...
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