Results 71 to 80 of about 1,326,056 (320)

Efficient Deployment of Multiple Unmanned Aerial Vehicles for Optimal Wireless Coverage [PDF]

IEEE Communications Letters, 2016
In this letter, the efficient deployment of multiple unmanned aerial vehicles (UAVs) acting as wireless base stations that provide coverage for ground users is analyzed.
Mohammad Mozaffari, W. Saad, M. Bennis, M. Debbah   +3 more
semanticscholar   +1 more source

A Detailed Survey and Future Directions of Unmanned Aerial Vehicles (UAVs) with Potential Applications

Aerospace, 2021
Recently, unmanned aerial vehicles (UAVs), also known as drones, have gained widespread interest in civilian and military applications, which has led to the development of novel UAVs that can perform various operations.
Nourhan Elmeseiry, Nancy A. Alshaer, T. Ismail   +2 more
semanticscholar   +1 more source

Task‐Oriented Path Planning Towards Autonomous Sensor Network Deployment in Rainforest Canopies

Advanced Robotics Research, EarlyView.
An informative path planner for drone‐based deployment of wireless sensor networks in rainforest canopies is presented, addressing key challenges in large‐scale biodiversity monitoring. By integrating canopy surface detection with connectivity‐aware sampling under strict flight constraints, the approach enables efficient and reliable aerial sensor ...
Rita Santos Raminhos, Salua Hamaza
wiley   +1 more source

Preliminary Design and Optimization Approach of Electric FW-VTOL UAV Based on Cell Discharge Characteristics

Drones
The electric vertical take-off and landing fixed-wing (FW-VTOL) unmanned aerial vehicle (UAV) combines the advantages of fixed-wing aircraft and multi-rotor aircraft.
Cheng He, Yuqi Tong, Diyi Liu, Shipeng Yang, Fengjiang Zhan   +4 more
doaj   +1 more source

Application of blockchain in the cluster of unmanned aerial vehicles

IET Blockchain, 2021
With the considerable exploration of unmanned aerial vehicles in civilian and military fields, the data storage and transmission mechanism of unmanned aerial vehicles exhibit significant security limitations, which cannot meet the strict requirements for
Shiwu Chen, Qin Li, Wei Wang, Yu Yang, Jun Jiang   +4 more
doaj   +1 more source

Unmanned Aerial Vehicles in Agriculture: A Survey

Agronomy, 2021
The number of tasks that nowadays are accomplished by using unmanned aerial vehicles is rising across many civil applications, including agriculture. Thus, this work aims at providing the reader with an overview of the agronomical use of unmanned aerial ...
J. del Cerro, Christyan Cruz Ulloa, A. Barrientos, Jorge de León Rivas   +3 more
semanticscholar   +1 more source

Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

Advanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings, Levanya Dewanarayana, Iline Shaju, Haider Al‐Wizni, Sampson Marquis, Weicheng Huang, Pooya Sareh   +6 more
wiley   +1 more source

Research on the aerodynamic characteristics of eVTOL aircraft ducted rotor tip embedded inside the ducted body

Scientific Reports
The lift system constitutes a pivotal technology in the makeup of vertical takeoff and landing aircraft systems. The application of ducted rotors in urban air mobility(UAM) has advantages and is one of the future development trends.
Siliang Du, Yi Zha, Chong Li, Zhiming Lu, Qijun Zhao   +4 more
doaj   +1 more source

Research on Lithium Battery Health State Prediction Model Based on Multimodal Signal Decomposition and Uncertainty Quantification Technology

Journal of Applied Science and Engineering
Precise estimation of lithium-ion battery State of Health (SOH) is essential for the safe and efficient operation of energy systems and electronic devices.
Jiangjiang Li, Lijuan Feng, Junyan Zhao, Jingfen Li   +3 more
doaj   +1 more source

A High‐Resolution Self‐Powered Angular Displacement Sensor Based on Triboelectric Nanogenerator With Time‐Grating

Advanced Science, EarlyView.
A self‐powered phase‐encoding sensing paradigm enables direct motion‐to‐time information conversion, providing a compact and autonomous strategy for high resolution angular displacement measurement. ABSTRACT In modern manufacturing and engineering, angular displacement sensors are crucial for motion control and feedback systems in Electromechanical ...
Shuxian Wang, Donghang An, Shiyou Liu, Zhiyi Wu   +3 more
wiley   +1 more source