Results 21 to 30 of about 4,176 (173)

Classification and Diagnosis of Propeller Damages Using FFT-Based Motor Current Signature Analysis of DC-Link Current

IEEE Access
This 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, Sewoong Park, Seungmin Choi, Sanga Lee, Jinseok Jeong, Donguk Lee   +5 more
doaj   +1 more source

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, Tom Haritos, John Robbins   +2 more
doaj   +1 more source

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
doaj   +1 more source

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
doaj   +1 more source

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, Chetan Kulkarni, Michael Lowry, Anupa Bajwa, Christopher Teubert, Jason Watkins   +5 more
doaj   +1 more source

ATC Human Factors Involved in RPAS Contingency Management in Non-Segregated Airspace

Applied Sciences, 2023
Objectives: The overall approach towards Remotely Piloted Aerial System integration into a non-segregated airspace is that the unmanned vehicles should be able to fit into the current air traffic management system, thus meeting all the technical and ...
Angelica Reyes-Muñoz, Cristina Barrado, Enric Pastor, Pablo Royo   +3 more
doaj   +1 more source

Adaptive Path Guidance Law for a Small Fixed-Wing UAS with Bounded Bank Angle

Drones
This study deals with the path-following guidance of a fixed-wing unmanned aerial system (UAS) in conjunction with parameter adaptation. Utilizing a backstepping control design approach, a path-following control algorithm is formulated for the roll ...
Suhyeon Kim, Dongwon Jung
doaj   +1 more source

Pholidota‐Inspired Electronic Skin Possessing Terahertz‐Wave Reflection–Absorption–Transmission Switchability

Advanced Science, EarlyView.
The pholidota‐inspired electronic skin is successfully constructed, originally realized four‐state reversible switching of terahertz‐wave reflection, absorption, transmission, and secondary reflection. In response to external demands, it issues deformation instructions, verifies the deformation state after the equipment executes the action, and thus ...
Shangjing Li, Jiangsong Hou, Yifeng Ruan, Jiang Du, Jun Qiu   +4 more
wiley   +1 more source

A Mindset-Based Evolution of Unmanned Aircraft System (UAS) Acceptance Into the National Airspace System (NAS)

IEEE Access, 2020
The main goal of this research is to evaluate the Air Traffic Controller (ATCo) workload considering the Unmanned Aircraft System (UAS) integration into the National Airspace System (NAS) through fast-time simulations, and including futuristic scenarios ...
Derick Moreira Baum, Euclides Carlos Pinto Neto, Jorge Rady De Almeida, Joao Batista Camargo, Paulo Sergio Cugnasca   +4 more
doaj   +1 more source

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai, Yefeng Yang, Tao Huang, Boyang Li   +3 more
wiley   +1 more source