Results 31 to 40 of about 14,844 (255)

Wake Propagation and Characteristics of a Multi-Rotor Unmanned Vehicle in Forward Flight

Drones, 2022
In this study, experimental investigations are used to explore the wake propagation and characteristics of a multi-rotor unmanned air vehicle (UAV) in a forward flight mission.
Glen Throneberry, Adam Takeshita, Christopher Michael Hocut, Fangjun Shu, Abdessattar Abdelkefi   +4 more
doaj   +1 more source

An Adaptive Acoustic Recognition System for Low-Altitude Airspace Security Based on Decoupled Dynamic Frequency Bands and Random Sound Sources

Algorithms
The acoustic frequency fingerprint (AFF) for drone recognition has emerged as a flexible and practical approach to address low-altitude airspace security concerns.
Miyi Zeng, Tingxiu Chen, Cao Huang, Fengyi Zhang, Yulong Ji   +4 more
doaj   +1 more source

Identifying Tree Species in a Warm-Temperate Deciduous Forest by Combining Multi-Rotor and Fixed-Wing Unmanned Aerial Vehicles

Drones, 2023
Fixed-wing unmanned aerial vehicles (UAVs) and multi-rotor UAVs are widely utilized in large-area (>1 km2) environmental monitoring and small-area (
Weibo Shi, Shaoqiang Wang, Huanyin Yue, Dongliang Wang, Huping Ye, Leigang Sun, Jia Sun, Jianli Liu, Zhuoying Deng, Yuanyi Rao, Zuoran Hu, Xiyong Sun   +11 more
doaj   +1 more source

Multi-UAV Wildfire Perimeter Monitoring System

2023 International Conference on Information and Communication Technologies for Disaster Management (ICT-DM), 2023
Monitoring the perimeter of a wildfire in real time is crucial for effective firefighting and decision-making. This paper proposes a multi-UAV system that combines real-time infield data with a fire propagation model to accurately predict the state of the wildfire perimeter and improve fire prediction.
Heracleous, Constantinos, Kolios, Panayiotis, Panayiotou, Christos   +2 more
openaire   +2 more sources

Multi-UAV exploration with limited communication and battery [PDF]

2015 IEEE International Conference on Robotics and Automation (ICRA), 2015
We propose a multi-robot exploration algorithm that uses adaptive coordination to provide heterogeneous behavior. The key idea is to maximize the efficiency of exploring and mapping an unknown environment when a team is faced with unreliable communication and limited battery life (e.g., with aerial rotorcraft).
Kyle Cesare, Ryan Skeele, Soo-Hyun Yoo, Yawei Zhang, Geoffrey A. Hollinger   +4 more
openaire   +1 more source

Active Obstacle Avoidance of Multi-Rotor UAV Swarm Based on Stress Matrix Formation Method

Mathematics
Aiming at the formation problem of the multi-rotor UAV swarm, this paper adopts a multi-rotor UAV swarm formation control method based on a stress matrix to ensure the stability of multi-rotor UAV swarm formation.
Zhenyue Qiu, Lei Zhang, Yuan Chi, Zequn Li   +3 more
doaj   +1 more source

Visually smooth multi-UAV formation transformation

Graphical Models, 2021
Abstract Unmanned airborne vehicles (UAVs) are useful in both military and civilian operations. In this paper, we consider a recreational scenario, i.e., multi-UAV formation transformation show. A visually smooth transformation needs to enforce the following three requirements at the same time: (1) visually pleasing contour morphing - for any ...
Xinyu Zheng, Chen Zong, Jingliang Cheng, Jian Xu 0023, Shiqing Xin, Changhe Tu, Shuang-Min Chen, Wenping Wang 0001   +7 more
openaire   +1 more source

On‐Chip Photonic Neural Network Architectures

Advanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong, Berkay Neseli, Seungyeon Cho, Seungsoo Lee, Yeonjun Kim, Seungyoon Choi, Hyo‐Hoon Park, Hamza Kurt   +7 more
wiley   +1 more source

Sharing Location Information in Multi-UAV Systems by Common Channel Multi-Token Circulation Method in FANETs

Elektronika ir Elektrotechnika, 2019
Unmanned Aerial Vehicle (UAV) technology is being used increasingly for military and civilian purposes. The primary reason for this increase is that UAVs eliminate the risk to human life in difficult and dangerous missions, are cost effective, and easily
Eyup Emre Ulku, Buket Dogan, Onder Demir, Ilker Bekmezci   +3 more
doaj   +1 more source

A Channel Rendezvous Algorithm for Multi-Unmanned Aerial Vehicle Networks Based on Average Consensus

Sensors, 2023
Realizing the distributed adaptive network construction of multi-UAV networks is an urgent challenge, as they lack a reliable common control channel and can only maintain a limited sensing range in crowded electromagnetic environments.
Yunlu Wang, Bo Zhang, Shan Qin, Jinlin Peng   +3 more
doaj   +1 more source