Results 1 to 10 of about 4,390 (154)

Research on reliability modeling of unmanned aircraft system avionics systems based on 5G

open access: yesInternational Journal of Distributed Sensor Networks, 2019
With the development of technology, an unmanned aircraft system will play a significant role in Internet of things based on 5G. Avionics system is an important part of the unmanned aircraft system, and the reliability of the avionics system directly ...
Qiang Zhou, Yongan Wei, Longjiang Zhu
doaj   +2 more sources

Unmanned Aircraft System traffic management: Concept of operation and system architecture

open access: yesInternational Journal of Transportation Science and Technology, 2016
Within the past few years, civilian demand for small unmanned aircraft systems (sUAS), commonly referred to as drones, has skyrocketed. The passage of the Federal Aviation Administration (FAA) Modernization and Reform Act in 2012 acknowledged this fact ...
Tao Jiang   +3 more
doaj   +3 more sources

PROSPECTIVE STRUCTURE AND FUNCTIONING OF THE CENTER FOR UNMANNED AIRCRAFT SYSTEMS OF EMERCOM OF RUSSIA [PDF]

open access: yesАктуальные вопросы пожарной безопасности, 2021
The development of unmanned aircraft system, regardless of its purpose and structural affiliation, involves the concerted efforts of stakeholders (management, scientists and designers, specialists of test complexes, tutors, as well as theoretical and ...
Inessa N. Isavnina   +3 more
doaj   +1 more source

Unmanned Aircraft Systems

open access: yesSafety & Defense, 2021
UAS (unmanned aircraft systems) for atmospheric research are able to fulfill scientific tasks comparable to manned research aircraft and carry similar instruments. On the one hand, the payload aboard small UAS is much smaller and lighter and the endurance is shorter.
Jens Bange   +2 more
openaire   +2 more sources

Numerical Simulation and PIV Experimental Investigation on Underwater Autorotating Rotor

open access: yesAerospace, 2022
In this work, the flow field of an autorotating rotor in a water tunnel with various pitches and shaft backward angles was investigated via particle image velocimetry (PIV).
Liang Li   +4 more
doaj   +1 more source

Asynchronously finite‐time fault detection for switched systems with unstable modes and intermittent measurements

open access: yesIET Control Theory & Applications, 2023
This study proposes a novel fault detection (FD) filter design approach for switched systems with unstable modes and intermittent measurement; the FD filter design approach considers asynchronous switching and ensures finite‐time stability (FTS).
Cheng Haoyu   +5 more
doaj   +1 more source

Cybersecurity of the Unmanned Aircraft System (UAS) [PDF]

open access: yesJournal of Intelligent & Robotic Systems, 2021
AbstractIn recent years, UASs have become more and more popular. There are many reasons for this; one of the most popular is the enhancement of drones’ functionalities and improvement in battery life, stabilization, navigation, sensor technology, and much more. Many benefits drive growth.
Mariusz Pyzynski, Tomasz Balcerzak
openaire   +2 more sources

Analysis of aerodynamic and aeroacoustics of full scale landing gear

open access: yesXibei Gongye Daxue Xuebao, 2022
The aerodynamic noise of a landing gear is an important source of airframe noise. The analysis of its noise characteristics plays an important role in the design of a low-noise landing gear.
TIAN Siyuan   +5 more
doaj   +1 more source

ASSESSMENT OF AN UNMANNED AIRCRAFT SYSTEM’S AIRWORTHINESS FOR CERTIFICATION [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2020
This article shows that there is a need to carry out the certification process of the system of Unmanned Aircraft Systems (UAS) as an element conditioning the safety of their operation.
Dominika DUDZIAK   +2 more
doaj   +1 more source

Overview of the Nordic Challenges for Unmanned Aircraft Systems [PDF]

open access: yes2021 30th Conference of Open Innovations Association FRUCT, 2021
The Nordic countries have an intermediate climate with actual four seasons. The weather here varies from summer hot to winter, freezing with rain and snow and all the water elements between them. In this paper, we will investigate the Nordic challenges for Unmanned Aircraft System operations.
Vadim Kramar 0001   +5 more
openaire   +2 more sources

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