Results 101 to 110 of about 174,771 (214)

Controller Design and Flight Experiments for the Dual Tilt Rotor Unmanned Aerial Vehicle in Helicopter Mode

, 2020
Vertical take-off and landing (VTOL) are the important flying stage of tilt rotor unmanned aerial vehicles (TR-UAV) in helicopter mode. Therefore, the performance of the controller for the helicopter mode will directly impact the safety of DTR-UAV during
Gu F(谷丰), Liu Z(刘重), He YQ(何玉庆), Zheng RJ(郑锐剑), Zhou H(周浩   +4 more
core  

From Manned to Unmanned Helicopters: A Transformer-Driven Cross-Scale Transfer Learning Framework for Vibration-Based Anomaly Detection

Actuators
Unmanned helicopters play a critical role in various fields including defense, disaster response, and infrastructure inspection. Military platforms such as the MQ-8C Fire Scout represent high-value assets exceeding $40 million per unit including ...
Geuncheol Jang, Yongjin Kwon
doaj   +1 more source

Fuzzy Control for an Unmanned Helicopter

, 2002
The overall objective of the Wallenberg Laboratory for Information Technology and Autonomous Systems (WITAS) at Linköping University is the development of an intelligent command and control system, containing vision sensors, which supports the operation of a unmanned air vehicle (UAV) in both semi- and full-autonomy modes.
openaire   +1 more source

Development of an unmanned helicopter automatic barrels transportation system

, 2015
In the 2nd International Unmanned Aerial Vehicle (UAV) Innovation Grand Prix (UAVGP) sponsored by Aviation Industry Corporation of China (AVIC), an autonomous barrel transportation mission was proposed for Rotary-wing UAV (RUAV) which aims at validating ...
Lin, Tianyu, Wu C(吴冲), Qi JT(齐俊桐), Song DL(宋大雷), Qi X(齐欣), Han JD(韩建达)   +5 more
core  

Determination of the Tail Unit Parameters of Ultralight Manned and Unmanned Helicopters at the Preliminary Design Stage

Aerospace
The 1–2 seat helicopters have developed considerably in recent years. They have a maximum take-off weight of 250 to 750 kg. Most of these helicopters have been converted into unmanned versions.
Vitaly Dudnik
doaj   +1 more source

Active Model Based Predictive Control for Unmanned Helicopter in Full Flight Envelope

, 2010
For the control of unmanned helicopters in full flight envelope, an active model based control scheme is developed in this paper. An adaptive set-membership filter (ASMF) is used to online estimate both the model error due to flight mode change and its ...
Qi JT(齐俊桐), Song DL(宋大雷), Liu GJ(刘光军), Han JD(韩建达)   +3 more
core  

High-Order Disturbance Observer-Based Fuzzy Fixed-Time Safe Tracking Control for Uncertain Unmanned Helicopter with Partial State Constraints and Multisource Disturbances

Drones
In the real-world operation of unmanned helicopters, various state constraints, system uncertainties and multisource disturbances pose considerable risks to their safe fight.
Ruonan Ren, Zhikai Wang, Haoxiang Ma, Baofeng Ji, Fazhan Tao   +4 more
doaj   +1 more source

Projeto da arquitetura de software embarcado de um veículo aéreo não tripulado [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Automação e Sistemas, Florianópolis, 2014.O projeto de Veículos Aéreos Não Tripulados (VANTs) é um processo complexo, pois ...
Gonçalves, Fernando Silvano
core  

Modelling a small-size unmanned helicopter using optimal estimation in the frequency domain

, 2010
In this paper, a semi-decoupled state-space model of a small-size helicopter is developed for hovering conditions in order to simplify the model identification process.
Qi JT(齐俊桐), Dai L(戴磊), Song DL(宋大雷), Liu GJ(刘光军), Han JD(韩建达)   +4 more
core  

Estimation of the Vertical Distribution of Radiocesium in Soil on the Basis of the Characteristics of Gamma-Ray Spectra Obtained via Aerial Radiation Monitoring Using an Unmanned Helicopter. [PDF]

Int J Environ Res Public Health, 2017
Ochi K, Sasaki M, Ishida M, Hamamoto S, Nishimura T, Sanada Y.   +5 more
europepmc   +1 more source