• The Bulletin of The Korean Astronomical Society
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• v.45 no.1
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• pp.40.3-40.3
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• 2020

한국천문연구원은 천문우주분야의 과학임무 탑재체 개발을 주도적으로 수행해오고 있다. 과학기술위성1호 주탑재체 원자외선영상분광기 FIMS 개발, 과학기술위성3호 주탑재체 다목적적외선영상시스템 MIRIS 개발, 차세대소형위성1호 주탑재체 근적외선영상분광기 NISS 개발을 수행하였고, 현재는 NASA와 국제협력으로 SPHEREx 우주망원경을 개발하고 있다. 이러한 개발 과정을 거치면서 주경 20cm 이하의 소형 탑재체 과학임무 한계와 더불어 연구 현장에서 더 큰 우주망원경의 수요가 제기되었고, 현재의 국가우주개발 중장기계획에도 2030년대 한국형 우주망원경을 포함하게 되었다. 이러한 일정에 발맞추어 한국천문연구원은 2030년대 한국형 우주망원경 독자 운영을 대비하기 위해서 2020년 1월부터 주요 사업으로 한국형 우주망원경 개발을 위한 기획연구를 시작하였다. 이 기획연구는 2년 동안 수행할 예정이며, 이 기획연구를 통해서 학계의 과학임무 요구사항을 사전에 충분히 조사하고, 국내외 산학연 전문가의 의견들을 종합 수렴하여 선도적인 과학 연구를 수행할 수 있는 우주망원경의 기본 제원을 확정할 예정이다. 이 발표에서는 이러한 기획연구의 세부 활동을 공유하고 보고하고자 한다.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.38 no.8
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• pp.813-822
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• 2010

Integrated data processing for display of flight critical data and mission critical data was conducted without additional display instruments using glass cockpit design. Based on a pre-designed flight critical system and a mission critical system, this paper shows an optimal design of subsystem integration. The design satisfies safety requirements of flight control systems(FCS) and requires minimized modification of pre-designed systems. By conducting integration test using System Integration laboratory(SIL), it is confirmed that the introduced design approach meets the safety requirements of the MEP system.

• Journal of Space Technology and Applications
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• v.1 no.2
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• pp.241-255
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• 2021

Space observation data includes research data such as stars, galaxies, Sun, space plasma, planets, and minor bodies observed through space missions, including processing and utilizing the observation data. Astronomy and space science observation systems are getting larger, and space mission opportunities and data size are increasing. Accordingly, the need for systematic and efficient management of space observation data is growing. Therefore, in Korea, a strategy and policy for space observation data should be established. As a stage of preparation, National Aeronautics and Space Administration (NASA)'s data strategy, which developed from extensive understanding and long-term experience for space observation data, was analyzed. Based on the analysis results, we propose a strategic direction and 10 recommendations for Korean space observation data strategies that will be the basis for establishing space observation data policies in the future.

• Journal of Satellite, Information and Communications
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• v.5 no.2
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• pp.50-56
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• 2010

Most mission trajectory design technologies for space exploration have been utilized the Patched Conic Approximation which is based on Hohmann transfer in two-body problem. The Hohmann transfer trajectory is basically an elliptic trajectory, and Patched Conic Approximation consists of Hohmann transfer trajectories in which each trajectory are patched to the next one. This technology is the most efficient method when considering only one major planet at each patch trajectory design. The disadvantages of the conventional Patched Conic Approach are more fuel (or mass) needed and only conic trajectories are designed. Recent space exploration missions need to satisfy more various scientific or engineering goals, and mission utilizing smaller satellites are needed for cost reduction. The geometrical characteristics of three-body dynamics could change the paradigm of the conventional solar system. In this theoretical concept, one can design a trajectory connecting around the solar system with comparably very small energy. In this paper, the basic three-body dynamics are introduced and a spacecraft mission trajectory is designed utilizing the three-body dynamics.

• Journal of Advanced Navigation Technology
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• v.4 no.2
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• pp.191-200
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• 2000

Recently, NORAD reported that only 6% of the total space objects cataloged in the table as above 10cm objects were being operated for the space missions and the others were just non-operated objects, such as rocket body, useless satellites which were finished their missions, and other fragments of space debris. A major contributor to the orbital debris background has been object breakup. Breakups generally are caused by explosions and collisions. Several international research groups and big countries' governments are trying to develop advanced technology for de-orbiting and to design new future satellites' modeling. The future need to be considered continuously that kind of technology and designing to preserve space and global environmental safety and to maintain welfare of mankind forever.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.48 no.11
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• pp.935-943
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• 2020

This paper presents a methodology for evaluating suitability of a manned-unmanned aerial vehicle team for a complicated mission. The study identified vehicle performance, equipment performance and level of autonomy as the key factors that affect the mission effectiveness. A manned and an unmanned aircraft were compared, and their performance was quantized in these respects. SEAD was chosen as a representative manned-unmanned team mission. The SEAD mission was broken down to a sequence of tasks. Mission experts evaluated the importance of each mark item for the mission legs. Combining the results showed proper type of aircraft for each leg depending on the complexity, safety, and importance of the task. Finally, the whole mission plan was laid out as a time-based sequence which alleviate pilot workload significantly.

• Bulletin of the Korean Space Science Society
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• 2008.04a
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• pp.26.3-27
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• 2008

• Bulletin of the Korean Space Science Society
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• 2005.04a
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• pp.61-61
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• 2005

• Bulletin of the Korean Space Science Society
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• 1995.10a
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• pp.25-25
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• 1995

• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.73-75
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• 2008

현대는 시뮬레이션을 통하여 많은 모의 훈련을 대체하고 있다. 시뮬레이터는 고유의 훈련 임무를 수행하기 위하여 기획, 제작 되어진다. 하지만 현대와 같은 종합적인 입체훈련 체계는 고유의 훈련 임무 이외에 개개의 시뮬레이터의 임무가 가상의 종합 시뮬레이션 환경에 참가한 통합 훈련 체계의 필요성을 야기하게 되었다. 또한 각각의 시뮬레이터의 기능은 보다 세분화 되었으며 높은 성능을 요구하게 되었다. 현재 KA-32 헬기 시뮬레이터 영상 프로그램을 제작하고 있는 한국소프트스페이스(주)는 독립적인 시뮬레이터들에 HLA(High Level Architecture)를 적용하여 하나의 종합 훈련 시스템을 구축하였다. 고유의 임무를 지닌 시뮬레이테는 각각의 임무를 가상의 종합 훈련 환경에 참가하여 서로간의 훈련 효과를 극대화 시켜화 시켜준다. HLA 기반의 종합 훈련 시스템의 RTI(Run-Time Infrastructure)는 Pitch 사의 pRTI를 사용하였으며, 가상의 종합 시뮬레이션 환경의 핵심이 되는FOM(Federation Object Model)은 호환성을 및 모든 객체의 표현을 위하여 RPR FOM(Real-time Reference FOM)을 사용하였다. 본 종합 훈련 시스템에서는 각각의 시뮬레이션간에 최고의 성능을 내기 위하여, 기능 세부화 하여 구성하였다. Terrion 사의 FLAMES는 종합 훈련 시스템의 시뮬레이션 진행/설정 및 분석을 담당하며, Mantis는 훈련 상황을 사실감 있는 3 차원 영상으로 참가자에게 전달하여 준다.