Results 21 to 30 of about 382,794 (354)
Error Dynamics Based Dual Heuristic Dynamic Programming for Self-Learning Flight Control
Applied Sciences, 2022 A data-driven nonlinear control approach, called error dynamics-based dual heuristic dynamic programming (ED-DHP), is proposed for air vehicle attitude control. To solve the optimal tracking control problem, the augmented system is defined by the derived
Xu Huang +5 more
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Influence of Pre-Radiation and Photo-Bleaching on the Yb-Doped Fiber Laser Radiated with Gamma-ray
Applied Sciences, 2023 To improve the radiation resistance of Yb-doped fiber lasers, we investigate the influence of pre-radiation and photo-bleaching on the gamma-radiated laser’s performance. When the gamma radiation dose is within 10 krad(Si) with a radiation dose rate less
Xuefeng Wang +6 more
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IET Cyber-Physical Systems, 2017 This case study analyses the possibilities to improve the execution time of model-based developed software by applying optimisations during code generation and compilation.
Kajetan Nürnberger +2 more
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Integrated series active filter for aerospace flight control surface actuation [PDF]
, 2007 The paper investigates integrated series active filters to satisfy aircraft power quality benchmarks and underlying design compromises. Advantages include reduced component count and retrofitting capability.
Bingham, Chris, Ganthony, D
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Onboard Distributed Trajectory Planning through Intelligent Search for Multi-UAV Cooperative Flight
Drones, 2022 Trajectory planning and obstacle avoidance play essential roles in the cooperative flight of multiple unmanned aerial vehicles (UAVs). In this paper, a unified framework for onboard distributed trajectory planning is proposed, which takes full advantage ...
Kunfeng Lu +3 more
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Control of an Aerospace Launcher [PDF]
AIP Conference Proceedings, 2009 This research is within the framework of the PERSEUS project proposed by the CNES (Centre National d’Etudes Spatiales). Its aim is to develop new concepts for the attitude control of space modules. This article presents a first study as well as the results of a robust LQG control system that allows stable and satisfactory performance for the attitude ...
N. Zbiri +4 more
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Method to Characterize Potential UAS Encounters Using Open Source Data
Aerospace, 2020 As unmanned aerial systems (UASs) increasingly integrate into the US national airspace system, there is an increasing need to characterize how commercial and recreational UASs may encounter each other.
Andrew Weinert
doaj +1 more source
Applied Sciences, 2022 Large flexible solar panels have the properties of light weight, low stiffness, and weak damping, which leads to low-frequency and large-amplitude vibrations.
Wei Hu +4 more
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COMPUTER VISION IN THE TELEOPERATION OF THE YUTU-2 ROVER [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 On January 3, 2019, the Chang'e-4 (CE-4) probe successfully landed in the Von Kármán crater inside the South Pole-Aitken (SPA) basin. With the support of a relay communication satellite "Queqiao" launched in 2018 and located at the Earth-Moon L2 ...
J. Wang +22 more
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International Journal of Aerospace Engineering, 2022 A folding wing aircraft can autonomously change its configuration in flight to respond to different flying environments. Hinge moment during morphing process is an important basis for driving mechanism design and structural strength check, and its ...
Hao Xu +4 more
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