Results 41 to 50 of about 49,392 (306)
AerospaceThe precise selection of key flight parameters is fundamental to enhancing aircraft condition monitoring and risk warning capabilities. However, existing methods typically rely on a single source of information, i.e., either solely expert judgments or ...
Shengkai Yan +5 more
doaj +1 more source
A Method to Support the Requirements Trade-Off of Integrated Vehicle Health Management for Unmanned Aerial Systems [PDF]
, 2014 he digital revolution in the latter part of the twentieth century has resulted in the increased use and development of Cyber-Physical Systems. Two of which are Unmanned Aerial Systems (UAS) and Integrated Vehicle Health Management (IVHM).
Heaton, Andrew Edward
core
Advanced Science, EarlyView.The pholidota‐inspired electronic skin is successfully constructed, originally realized four‐state reversible switching of terahertz‐wave reflection, absorption, transmission, and secondary reflection. In response to external demands, it issues deformation instructions, verifies the deformation state after the equipment executes the action, and thus ...
Shangjing Li +4 more
wiley +1 more source
UAV Path Planning in Threat Environment: A*-APF Algorithm for Spatio-Temporal Grid Optimization
DronesTo address low threat avoidance efficiency and poor global path adaptability in UAV path planning under threatening environments, this paper proposes a hybrid A*-Artificial Potential Field (APF) path planning method based on spatio-temporal grid ...
Longhao Liu +6 more
doaj +1 more source
International Journal of Aerospace Engineering, 2019 This paper presents a dynamical recurrent neural network- (RNN-) based model predictive control (MPC) structure for the formation flight of multiple unmanned quadrotors.
Boyang Zhang +3 more
doaj +1 more source
Analysis on Flight Dynamics Characteristic for ELA-07 Autogyro
Hangkong gongcheng jinzhan, 2018 Compared with similar helicopters, the autogyro has its unique advantages and has been widely applied in the civilian field. In order to provide theoretical reference for unmanned flight control of autogyro, the features, advantages and exiting problems ...
Ma Cunwang +3 more
doaj +1 more source
Research on Multi-state Life Control Strategy and Simulation for Aero-engine
Hangkong gongcheng jinzhan, 2022 Life control of aero-engine is an important part of aviation equipment maintenance support.To solve problems,such as existing multiple state life,single using strategy and serious state life consumption,a multi-state life control model of aero-engine is ...
CUI Lijie, LI Haoxiang, LI Xue, TONG Qi
doaj +1 more source
Study of Free‐Space Optical Quantum Network: Review and Prospectives
Advanced Science, EarlyView.Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley +1 more source
Comparative Approach of Unmanned Aerial Vehicle Restrictions in Controlled Airspaces [PDF]
, 2022 Recent public discourse regarding unmanned aerial vehicle (UAV) usage and regulation is focused around public privacy and safety. Most authorities have employed key guidelines and licensing procedures for piloting UAVs, however there is marginal ...
Simmons, Shane +7 more
core +1 more source
Metasurface‐Enabled Active‐Like Passive Radar
Advanced Science, EarlyView.A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li +7 more
wiley +1 more source