Results 1 to 10 of about 44,635 (305)

Safety risk assessment and prevention and control measures for reloading airdrop missions [PDF]

open access: yesE3S Web of Conferences, 2021
In recent years, as the heavy equipment airdrop work continues to deepen, Chinese heavy equipment airdrop business has shown a vigorous development trend, and mission training is getting closer and closer to actual combat.
Jihui Xu   +7 more
doaj   +1 more source

Risk assessment of heavy landing based on BWM and cloud model [PDF]

open access: yesE3S Web of Conferences, 2021
Aiming at the systemic, ambiguity and randomness characteristics of the aircraft's heavy landing risk, this paper starts from the system perspective and proposes a risk assessment method based on the Best- Worst method (BWM) and cloud model.
Jiahui Shi   +5 more
doaj   +1 more source

Incremental Backstepping Sliding-Mode Trajectory Control for Tailless Aircraft with Stability Enhancer

open access: yesAerospace, 2022
This paper presents an incremental backstepping sliding-mode (IBS) controller for trajectory control of a tailless aircraft with unknown disturbances and model uncertainties.
Zihou He   +5 more
doaj   +1 more source

Attitude-Tracking Control for Over-Actuated Tailless UAVs at Cruise Using Adaptive Dynamic Programming

open access: yesDrones, 2023
Using adaptive dynamic programming (ADP), this paper presents a novel attitude-tracking scheme for over-actuated tailless unmanned aerial vehicles (UAVs) that integrates control and control allocation while accounting for nonlinearity and nonaffine ...
Zihou He   +5 more
doaj   +1 more source

Unmanned Aerial Vehicles

open access: yesGeodetski glasnik, 2016
Unmanned aerial vehicles have a wide range of applications, and their purpose is every day more important. Construction has been improving, finding the materials that are optimal for carrying out the functions which need to be cope with. Legal regulations for unmanned aircrafts up to 150 kg take-off weight (MTOW) varies from country to country.
Vlado Jurić   +3 more
openaire   +3 more sources

Safety Assessment of Transport Aircraft Heavy Equipment Airdrop: An Improved STPA-BN Mechanism

open access: yesIEEE Access, 2022
Aviation safety has been an eternal theme, and safety assessment is taken as the important method to assess the aircraft safety, but it is difficult to assess the safety of a heavy equipment airdrop from a transport aircraft due to mission complexity and
Jihui Xu   +3 more
doaj   +1 more source

Improving the Best-Worst Method Based on Optimal Completion of Incomplete Pairwise Comparison Matrix

open access: yesIEEE Access, 2022
In this paper, the pairwise comparison matrix (PCM) of the best-worst method (BWM) is regarded as a special incomplete PCM (IPCM), and an improved method based on the optimal completion of the IPCM, called BWM-IPCM, is proposed.
Shihui Wu, Bo He, Xiaodong Liu
doaj   +1 more source

Intelligent Segmentation and Change Detection of Dams Based on UAV Remote Sensing Images

open access: yesRemote Sensing, 2023
Guilin is situated in the southern part of China with abundant rainfall. There are 137 reservoirs, which are widely used for irrigation, flood control, water supply and power generation.
Haimeng Zhao   +9 more
doaj   +1 more source

Characteristic Analysis on UAV-MIMO Channel Based on Normalized Correlation Matrix

open access: yesThe Scientific World Journal, 2014
Based on the three-dimensional GBSBCM (geometrically based double bounce cylinder model) channel model of MIMO for unmanned aerial vehicle (UAV), the simple form of UAV space-time-frequency channel correlation function which includes the LOS, SPE, and ...
Gao Xi jun, Chen Zi li, Hu Yong Jiang
doaj   +1 more source

Single Image Super-Resolution Method Based on an Improved Adversarial Generation Network

open access: yesApplied Sciences, 2022
Super-Resolution (SR) techniques for image restoration have recently been gaining attention due to their excellent performance. For powerful learning abilities, Generative Adversarial Networks (GANs) have been proven to have achieved great success.
Qiang Wang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy