Results 1 to 10 of about 416,529 (192)

Unmanned aircraft: the future in military aviation

open access: yesProceedings of the 2004 American Control Conference, 2004
Abstract This paper presents a summary of the plenary talk discussing the emerging need for unmanned aircraft, recent advances in nonlinear control methods for aircraft, and recent flight test programs involving the demonstration of advanced nonlinear control technologies.
openaire   +1 more source

Chance-constrained optimal power flow for improving line flow and voltage security of power transmission networks

open access: yesAutonomous Intelligent Systems
With the growing penetration of renewable energy, the impact of renewable uncertainties on power system secure operation is of increasing concern. Based on a recently developed linear power flow model, we formulate a chance-constrained optimal power flow
Yaodan Cui   +5 more
doaj   +1 more source

Visualization Techniques for Spray Monitoring in Unmanned Aerial Spraying Systems: A Review

open access: yesAgronomy
Unmanned Aerial Spraying Systems (UASS) has rapidly advanced precision crop protection. However, the spray performance of UASSs is influenced by nozzle atomization, rotor-induced airflow, and external environmental conditions.
Jungang Ma   +6 more
doaj   +1 more source

Identification, Categorisation and Gaps of Safety Indicators for U-Space

open access: yesEnergies, 2020
Many civilian applications of commercial unmanned aircraft are being planned to operate in the years ahead. Several countries have developed their own framework to design the operation of unmanned aircraft and the different services that demand safe ...
Javier Alberto Pérez-Castán   +4 more
doaj   +1 more source

Thrust Characteristics of a Ducted Fan of a Quadcopter in Various Flight Modes

open access: yesFluids
Ducted fans are widely used in vehicles with a high engine power per unit swept area, including hovercraft propulsors and vertical take-off aircraft. Computational fluid dynamics (CFD) is a powerful tool for selecting the aerodynamic configuration of new
Pavel Bulat, Pavel Chernyshov
doaj   +1 more source

Unmanned aerial vehicle bypass training system

open access: yesТехнічна інженерія, 2020
The problem of creating a system for simulating the flight of an unmanned aircraft or remotely piloted aircraft system between buildings is solved, which uses multi-mode flight control by dividing the trajectory of the unmanned aircraft into several ...
M.S. Graf
doaj   +1 more source

A Review of Detect and Avoid Standards for Unmanned Aircraft Systems

open access: yesAerospace
When operating an unmanned aircraft system within the specific category beyond Air Risk Class a or within the certified category, a detect and avoid system is required in order to mitigate the risk of colliding with manned aircraft.
Marcel Riedel
doaj   +1 more source

Study on Cooperative Anti-submarine Warfare of the MMA and UAVS

open access: yesHangkong gongcheng jinzhan, 2018
The multimission maritime aircraft(MMA) will be the major air force for anti-submarine warfare and intelligence, surveillance, reconnaissance campaign on the sea.
Li Xiaowei, Duan Zhuoyi
doaj   +1 more source

A drone-based prototype technique for monitoring soil degassing at active volcanic craters

open access: yesEarth, Planets and Space
Developing techniques to monitor volcanic activity from safe distances is crucial for advancing scientific knowledge while protecting the safety of field personnel. One of the most demanding tasks in this context is the measurement of soil gas emissions,
Társilo Girona   +9 more
doaj   +1 more source

Development of a project to create a road transport infrastructure using small unmanned aircraft [PDF]

open access: yesE3S Web of Conferences
The infrastructure for small unmanned aircraft has not yet been formed: there are no organized ground-based stations, there are no clear operating regulations for performing specialized types of work.
Duganova Elena   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy