Results 11 to 20 of about 286,943 (345)
Safety Design for the China Space Station
Space: Science & Technology, 2023 The safety of a space station under normal and abnormal conditions can be ensured only by comprehensively identifying various hazards of the space station during its whole mission cycle and formulating control measures against each hazard.
Wei Li +5 more
doaj +1 more source
Multi-Task Learning and Multimodal Fusion for Road Segmentation
IEEE Access, 2023 The road segmentation task is to extract the road surface from the image at pixel level. In road segmentation for remote sensing images, deep learning-based methods have shown high-quality results in various scenarios.
Bowen Cheng +4 more
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Deflecting small asteroids using laser ablation : Deep space navigation and asteroid orbit control for LightTouch2 Mission [PDF]
, 2013 This paper presents a low-cost, low mass, mission design to successfully intercept and deflect a small and faint, 4 m in diameter asteroid. Intended to be launched after 2025, the laser-ablating mission, LightTouch2 will be used to deflect the orbit of ...
Branco, Joao +4 more
core +1 more source
The Journal of Engineering, 2019 A large aperture membrane phased array antenna with an array antenna and transmit/receive (T/R) modules is presented for geosynchronous Earth orbit synthetic aperture radar applications.
Mingming Xu +5 more
doaj +1 more source
Space: Science & Technology, 2023 China’s Tiangong space station has been completed in 2022 to support large-scale multidisciplinary space science research and technology experiments. With a large payload capacity and long operating time, Tiangong space station has many irreplaceable ...
Zhao Yin +5 more
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Research on Sand-dust Separation Technology Based on Gas-solid Two-phase Numerical Simulation [PDF]
E3S Web of Conferences, 2020 The separation technology in the large-scale sand-dust environment ground simulation test system applicable to the environmental adaptability and reliability verification of aerospace electromechanical products is studied.
Zhang Lei, Wang Junwei, Li Guohua
doaj +1 more source
Baseline designing and implementation approach for a Geo-SAR tomography system
The Journal of Engineering, 2019 This study proposes a new method to design and implement the baseline of a geosynchronous Earth orbit synthetic aperture radar (Geo-SAR) tomography system. Due to the satellite's orbital property, its ideal revisit cycle is 1 day, and it could be changed
Zhao Bingji +4 more
doaj +1 more source
Spacecraft charging and ion wake formation in the near-Sun environment [PDF]
, 2010 A three-dimensional (3-D), self-consistent code is employed to solve for the static potential structure surrounding a spacecraft in a high photoelectron environment.
D. E. Larson +10 more
core +2 more sources
Stochastic Subspace Method for Experimental Modal Analysis
MATEC Web of Conferences, 2016 The formula of stochastic subspace identification method is deduced in details and the program is written out. The two methods are verified by a vibration test on a 5-floor rigid frame model.
Liu Dazhi +5 more
doaj +1 more source
Journal of Mathematics, 2023 Predicting telemetry data is vital for the proper operation of orbiting spacecraft. The Grey–Markov model with sliding window (GMSW) combines Grey model (GM (1, 1)) and Markov chain forecast model, which allows it to describe the fluctuation of telemetry
Liang Ren +3 more
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