Results 111 to 120 of about 40,602 (165)

Space-borne radar detection of orbital debris

Proceedings of GLOBECOM '93. IEEE Global Telecommunications Conference, 2002
Orbital debris in low-Earth-orbit (LEG) poses an increasing threat to the Space Station Freedom (SSF). A combined ground-based/on-orbit radar detection system can provide adequate warning to minimize the collision threat. The paper discusses the unique features on an on-board radar, its contributions to solving the problem, simulation results from ...
J.R. Carl, G.D. Arndt, B.A. Bourgoise, I. Paz   +3 more
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Space debris detection with fast grid-based learning

2020 IEEE 3rd International Conference of Safe Production and Informatization (IICSPI), 2020
Fast space debris detection is valuable to space safety and space vehicle operation. In this paper, we proposed a fast space debris detection method with grid-based learning. The image divided into 14×14 grids, and then the fast grid-based neural network (FGBNN) is used to locate the position of the space debris in the grids. The experiments show that,
Yaobing Xiang, Jiangbo Xi, Ming Cong, Yun Yang, Chaofeng Ren, Ling Han   +5 more
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Space Debris Detection and Analysis

1994
Abstract : A 40 cm telescope with an intensified CCD detector and video recording was used to detect space-debris objects. Participation in the ODERACS experiment showed that objects as small as 5 cm could be detected with this size telescope. Image analysis techniques were tested to enhance the low S/N debris streaks in the recorded video signals, and
Ronald Siewert, Robert H. Eather
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Analysis of Defocus in Space Based Space Optical Debris Detection

ACTA PHOTONICA SINICA, 2016
the reasons of the generation of defocus were discussed and the defocus change was analysed from the relative distance, atmospheric pressure and temperature change. the modulation transfer function model was proposed to study the image quality influenced by defocus. then different defocus value leading image blurry was simulated. the simulation results
曾德贤 ZENG De-xian, 胡炳梁 HU Bing-liang, 宋海军 SONG Hai-jun   +2 more
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Coherent Integration Detection Algorithm Research of Space Debris

2006 CIE International Conference on Radar, 2006
In this paper, the problem of coherent integrative detection of high velocity moving target-space debris by a space-based chirp radar is investigated. It is pointed out that during coherent integrative detection the space debris target returns may migrate in radar resolution cells.
Fengsen Deng, Xuegang Wang
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Space debris detection using Laser Communications Demonstration Equipment

2000 IEEE Aerospace Conference. Proceedings (Cat. No.00TH8484), 2002
In order to know the potential hazard of the space debris around the orbit of the International Space Station (ISS) and to develop the technology to detect small-sized space debris (1-1.0 cm), an observation experiment is currently planned to detect space debris around the ISS.
Y. Arimoto, J. Uchida, A. Semerok
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The application of lidar in detecting space debris

SPIE Proceedings, 2008
The accumulation of space debris is expected to present an increasing threat to orbital aerostat. To develop and use space resource continually and in security the detecting technology for space debris has to be improved. The paper firstly introduces the concept of space debris and their common detection means, and then introduces the application of
Yang Wang, Qianqian Wang
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Space Debris Detection Algorithm Based on Mathematical Morphology

2009 International Conference on Artificial Intelligence and Computational Intelligence, 2009
With the space exploring, the number of the aircrafts in orbit has been increasing, and how to reduce the growth rate of space debris or detect or remove them is urgent. Therefore, the space debris detection algorithm research has become one of key technologies in space debris research. For the traditional algorithms of the target detection are limited
Kezhao Li, Qin Zhang, Zengzhang Guo, Jiangping Yuan, Chaoying Zhao, Keke Xu   +5 more
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First optical space debris detection campaign in Italy

Advances in Space Research, 2004
Abstract In April 2002 the first dedicated observations of space debris in Italy have been performed by the Group of Astrodynamics of the University of Rome “La Sapienza”. The campaign was accomplished using one of the Campo Catino Astronomical Observatory telescopes. In the paper the campaign is described and the first results are presented.
M. Porfilio, PIERGENTILI, FABRIZIO, GRAZIANI, Filippo   +2 more
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Streak Detection for Space Debris observation

Man-made space debris orbit around the Earth at many altitudes in different orbits and many launches add further debris to already congested orbits. The ESA GSTP-funded Optical In-Situ Monitor project started in 2016 and aims to analyze the End-to-End processing pipeline from image acquisition to the extracted positions of space debris.
Vallduriola, G.V., Suarez Trujillo, D.A., Helfers, T., Daens, Damien, Utzmann, J., Pittet, Jean-Noël, Lievre, N.   +6 more
openaire   +1 more source