• Title/Summary/Keyword: 우주전략

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A STUDY ON GNSS TECHNOLOGY STRATEGIES WITH ANALYSIS OF INFORMATION (정보분석을 통한 위성항법 기술분야 전략 연구)

  • Kim, Sun-Woo;Cho, Jung-Ho
    • Bulletin of the Korean Space Science Society
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    • 2007.10a
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    • pp.129-134
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    • 2007
  • As quantity of information has been increased rapidly, the importance of efficient information analysis system has increased. This research suggests the direction of GNSS (Global Navigation Satellite System) technology strategies with information analysis on SCI Expanded DB. Exactly, it analyzes paper map and network structure between nations, between institutes and between authors. As a conclusion, it suggests strategies to take an opportunity for emerging technology and secure a leading position.

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Statistical Conjunction Analysis between KOMPSAT-2 and Space Debris (아리랑 2호와 우주파편간의 충돌가능성 분석)

  • Jung, In-Sik;Choi, Su-Jin;Chung, Dae-Won
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.40 no.1
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    • pp.78-85
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    • 2012
  • Space debris is the collection of objects in orbit around the Earth that were created by humans but no longer serve any useful purpose. Since the beginning of spacecraft launch in 1957, the number of space debris has been increasing. According to USSTRATCOM, the number of space debris which were bigger than 10 cm is more than 15,000. Recently there were two critical events: One is that China shot down their satellite using missile and the other is that two satellite, United States's Iridium 33 and Russia's Cosmos 2251, collided with each other. Thanks to these events, Space environment in which KOMPSAT-2 operates has become severer. This paper presents the analysis of the number of space debris which are close to KOMPSAT-2 and the maximum conjunction probability via minimum range. Especially, this paper makes it possible to continuously monitor the space debris that is possible to hit KOMPSAT-2 through the identification and analysis.