Time-Critical Cooperative Control of Autonomous Air Vehicles / by Kaminer, Isaac, author 649748, Pascoal, António M., author 649749, Xargay, Enric, author 649750, Hovakimyan, Naira, author 649751, Cichella, Venanzio, author 649752, Dobrokhodov, Vladimir, author 649753, ScienceDirect (Online service) 7722

Get full text

Biplane Trajectory Tracking Using Hybrid Controller Based on Backstepping and Integral Terminal Sliding Mode Control by Nihal Dalwadi, Dipankar Deb, Jagat Jyoti Rath

“…A biplane quadrotor is a hybrid type of Unmanned Aerial Vehicle (UAV) that has advantages of both fixed-wing and rotary-wing UAVs. In this study, we design controllers using (i) Backstepping Control (BSC), (ii) Integral Terminal Sliding Mode Control (ITSMC), and (iii) Hybrid control (ITSMC + BSC), where the ITSMC controls attitude and BSC controls the altitude subsystems as per the mathematical model of biplane quadrotor. …”
Get full text

Development of a Flexible Framework Multi-Design Optimization Scheme for a Hand Launched Fuel Cell-Powered UAV by Zaid O. Alrayes, Mohamed Gadalla

“…This paper presents different methods for the design of a hand-launchable, fixed wing, fuel cell-powered unmanned aerial vehicle (UAV) to maximize flight endurance during steady level flight missions. …”
Get full text

Aerial Surveillance with Low-Altitude Long-Endurance Tethered Multirotor UAVs Using Photovoltaic Power Management System by Sunghun Jung, Yonghyeon Jo, Young-Joon Kim

“…For a continuous surveillance mission using a swarm of multiple tethered low-altitude long-endurance (LALE) multirotor-type unmanned aerial vehicles (UAVs), we developed a 500 W class photovoltaic power management system (PPMS) which monitors voltage and current flows of photovoltaic (PV) panels, battery pack, and UAV and controls power flows to support UAV flight operation. In contract to a fixed-wing UAV, a tethered multirotor UAV can generate continuously varying closed-circuit television (CCTV) like ground map images by stitching incoming images though the operation range is limited. …”
Get full text

Positional Accuracy Assessment of Digital Orthophoto Based on UAV Images: An Experience on an Archaeological Area by Saadet Armağan Güleç Korumaz, Ferruh Yıldız

“…The aim of this paper is to evaluate horizontal and vertical accuracy of an orthophoto taken by a fixed-wing UAV in an archaeological area. The evaluation is made according to ASPRS (American Society for Photogrammetry and Remote Sensing) Accuracy Standards for Digital Geospatial Data. …”
Get full text

Hybrid deterministic non-deterministic data-parallel algorithm for real-time unmanned aerial vehicle trajectory planning in CUDA by Vincent Roberge, Mohammed Tarbouchi

“…In this paper, we use a non-deterministic Flower Pollination Algorithm (FPA) to deal with the problem's complexity and compute feasible and quasi-optimal trajectories for fixed-wing UAVs in complex 3D environments, taking into account the vehicle's flight properties. …”
Get full text

The Development of an UAV Borne Direct Georeferenced Photogrammetric Platform for Ground Control Point Free Applications by Chien-Hsun Chu, Meng-Lun Tsai, Kai-Wei Chiang

“…Rapid spatial information collection has become an emerging trend for remote sensing and mapping applications. In this study, a fixed-wing Unmanned Aerial Vehicle (UAV)-based spatial information acquisition platform that can operate in Ground Control Point (GCP) free environments is developed and evaluated. …”
Get full text

Disturbance Observer-Based Backstepping Control of Tail-Sitter UAVs by Nihal Dalwadi, Dipankar Deb, Mangal Kothari, Stepan Ozana

“…The hybrid quadrotor vertical takeoff and landing (VTOL) UAV has the benefits of both rotary-wing aircraft and fixed-wing aircraft. However, the vehicle requires a robust controller for takeoff, landing, transition, and hovering modes because the aerodynamic parameters differ in those modes. …”
Get full text

A Study of Collaborative Trajectory Planning Method Based on Starling Swarm Bionic Algorithm for Multi-Unmanned Aerial Vehicle by Fayin Chen, Yong Tang, Nannan Li, Tao Wang, Yiwen Hu

“…Specifically, an imitation-based starling cluster cooperative trajectory planning technique is proposed for a fixed-wing model of a six-degree-of-freedom UAV cluster. …”
Get full text

Flight phase classification for small unmanned aerial vehicles by Jakub Leško, Rudolf Andoga, Róbert Bréda, Miriam Hlinková, Ladislav Fözö

“…The functionality of the designed system was validated by several experimental flights using a small fixed-wing UAV. To evaluate the validity of the proposed system, a set of special maneuvers was performed during test flights. …”
Get full text

Aerodynamic Optimization Design of the Rotor Blade of a Tilt-rotor Aircraft by Sun Kaijun, Zhang Lian, Fu Yiwei, Yu Yueyang

“…The aerodynamic design of tilt-rotor needs to synthetically consider the different requirements in helicopter mode and fixed-wing aircraft mode. The multi-objective genetic algorithm based on Kriging surrogate model is used to establish an optimization design methods for aerodynamic shape of tilt-rotor, the Latin hypercube sampling method is employed to generate the initial sample points, and the Kriging surrogate model is built to replace the numerical simulation of flow. …”
Get full text

Aeroacustic and Vibroacoustic Advancement in Aerospace and Automotive Systems by Roberto Citarella, Luigi Federico, Mattia Barbarino

“…Topics covered in this Special Issue deal with computational, instrumentation and data analysis of noise and vibrations of fixed wing aircrafts, satellites, spacecrafts, automotives and trains, ranging from aerodynamically generated noise to engine noise, sound absorption, cabin acoustic treatments, duct acoustics and vibroacoustic properties of materials. …”
Get full text

Development of Vertiport Capacity Envelopes and Analysis of Their Sensitivity to Topological and Operational Factors by Vascik, Parker D., Hansman, R. John

“…While throughput has been extensively researched for fixed-wing operations, little research has been dedicated to the operation of infrastructure for Vertical Takeoff and Landing (VTOL) aircraft. …”
Get full text

Implementation of a radar prototype on an Unmanned Aerial Vehicle (UAV) by Ma, Xiao

“…The aim of the final year project is to understand how to implement a radar prototype on an Unmanned Arial Vehicle and develop a fixed wing unmanned aerial vehicle which can perform automatically flying according to the way points and utilise a gimbal to fix the camera to a certain angle. …”
Get full text

PENERAPAN SISTEM KENDALI PID UNTUK KESTABILAN TILT-TWINCOPTER DENGAN METODE DCM by , SANI PRAMUDITA, , Andi Dharmawan S.Si., M.Cs

“…Twin-tiltrotor has a Vertical Take Off and Landing system, so it can hover anytime and it can fly using fixed wing model. This study aims to design a system that can stabilize while hovering using DCM and PID control methods. …”

Experimental investigation of free wing IIUM-UAV configuration by Omar, Ashraf Ali, Mohd Yusof, Mohammad Fairuzi, Mohd Sani, Mohd Afnan

“…The experimental results showed that, for free wing UAV the distribution of pressure coefficients are behaves differently compared to the fixed wing UAV. The results also showed that the using of free wing configuration can delay or avoid the flow separation.…”
Get full text

Development of multiple configuration flying wing UAV by Mansor, Yaakob, Sahwee, Zulhilmy, Mohd Asri, Muhammad Hariz

“…This paper discusses the development of a fixed-wing Unmanned Aerial Vehicle (UAV) platform that can be customized into multiple configurations. …”
Get full text

Longitudinal actuated abdomen control for energy efficient flight of insects by Ogunwa, Titilayo, Blake, McIvor, Awang Jumat, Nurkhairunisa, Abdullah, Ermira Junita, Chahl, Javaan

“…We have examined the effect of this type of actuation in the simplified case of a small fixed wing aircraft to determine whether energetic advantages exist in normal flight when compared to the cost of actuation using aerodynamic control surfaces. …”
Get full text

A Numerical and Experimental Investigation of the Convective Heat Transfer on a Small Helicopter Rotor Test Setup by Abdallah Samad, Eric Villeneuve, François Morency, Christophe Volat

“…Results indicate that the fixed-wing <i>Fr_x</i> at the stagnation point was in the range of literature experimental data, and within 8% of fully turbulent CFD simulations. …”
Get full text

Low-fidelity design optimization and development of a VTOL swarm UAV with an open-source framework by Nikhil Sethi, Saurav Ahlawat

“…We then use this framework to design an all-electric unmanned aerial system with transitioning Vertical Take-off and Landing (VTOL) and Fixed-Wing (FW) modes. The UAV is capable of long-range surveillance up to 100 Kilometers and carrying a maximum relief payload of 1 kg while operating in an ad-hoc wi-fi network with a swarm of similar UAVs. …”
Get full text