Results 21 to 30 of about 268,742 (315)

Unmanned Aerial Vehicles for Air Pollution Monitoring: A Survey

open access: yesIEEE Internet of Things Journal, 2023
Unmanned aerial vehicles (UAVs) equipped with air quality sensors offer a powerful solution for increasing the spatial and temporal resolution of air quality data, searching and detecting emission sources, and monitoring emissions from fixed and mobile ...
Naser Hossein Motlagh   +9 more
semanticscholar   +1 more source

Autonomous three-dimensional formation flight for a swarm of unmanned aerial vehicles [PDF]

open access: yes, 2011
This paper investigates the development of a new guidance algorithm for a formation of unmanned aerial vehicles. Using the new approach of bifurcating potential fields, it is shown that a formation of unmanned aerial vehicles can be successfully ...
Badawy A.   +14 more
core   +1 more source

Recent Advances in Unmanned Aerial Vehicles: A Review

open access: yesThe Arabian journal for science and engineering, 2022
In recent decades, aerial robots especially small UAVs and drones have witnessed tremendous improvements in terms of their structure, working methodology, flying features and navigation control.
Faiyaz Ahmed   +3 more
semanticscholar   +1 more source

Formalized Resolution of the Scientific Task for Improving the Effective Planning Special Purpose Unmanned Aerial Vehicles Routes of Tactical Level [PDF]

open access: yes, 2019
In the article, the features of application of special purpose unmanned aerial vehicles (UAVs) of the tactical level have resulted during the operation of the joint forces.
Bondarenko, Yuriy   +2 more
core   +2 more sources

Nonlinear Controller Design via Inferenced-Augmentation of Equivalent Linearized System

open access: yesIJID (International Journal on Informatics for Development), 2019
Output compensation of nonlinear system response is studied in this work with an inference-based design method used to control the nonlinear dynamics in the presence of non-linear effects.
Ovie EseOghene   +2 more
doaj   +1 more source

A hybrid thrusting system for increasing the endurance time of multirotor unmanned aerial vehicles

open access: yesInternational Journal of Advanced Robotic Systems, 2023
One of the most significant disadvantages of electric multirotor unmanned aerial vehicles is their short flight time compared to fuel-powered unmanned aerial vehicles. This is mainly due to the low energy density of electric batteries. Fuel has much more
Jawad Bdour, Belal H Sababha
doaj   +1 more source

A miniaturized CPW fed tri-band antenna based on metamaterial resonance [PDF]

open access: yesAIP Advances
A miniaturized metamaterial-based tri-band antenna is proposed, which achieves multi-band coverage and performance enhancement through innovative structural design.
Mingxin Liu   +4 more
doaj   +1 more source

Distributed sensing units deploying on group unmanned vehicles

open access: yesInternational Journal of Distributed Sensor Networks, 2021
This study aims to use two unmanned vehicles (aerial vehicles and ground vehicles) to implement multi-machine cooperation to complete the assigned tasks quickly.
Bao Rong Chang   +3 more
doaj   +1 more source

Distributed Robust Formation Tracking Control for Quadrotor UAVs with Unknown Parameters and Uncertain Disturbances

open access: yesAerospace, 2023
In this paper, the distributed formation tracking control problem of quadrotor unmanned aerial vehicles is considered. Adaptive backstepping inherently accommodates model uncertainties and external disturbances, making it a robust choice for the dynamic ...
Linxing Xu, Yang Li
doaj   +1 more source

Unmanned Aerial Vehicles in Smart Agriculture: Applications, Requirements, and Challenges [PDF]

open access: yesIEEE Sensors Journal, 2020
In the next few years, smart farming will reach each and every nook of the world. The prospects of using unmanned aerial vehicles (UAV) for smart farming are immense.
Praveen Kumar Reddy Maddikunta   +6 more
semanticscholar   +1 more source

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