• Aerospace Industry
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• s.105
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• pp.50-51
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• 2009

보스니아 내전 지역을 정찰비행 중이던 미 해군 F/A-18F 슈퍼 호넷을 향해 갑자기 지대공 미사일 공격이 가해진다. 조종사는 미사일의 추적을 뿌리치기 위해 모든 방어 장비를 총 동원해 회피 기동을 펼치지만 결국 적진 한 복판에서 격추되고 만다. 지난 2002년 1월 개봉한 영화 에너미 라인스(Behind Enemy Lines) 초반에 등장하는 장면이다. 영화에서 묘사된 것과 같이 미사일은 피아를 불문하고 가장 강력한 공격무기이자 가장 대응하기 까다로운 무기다.

• The Korean Journal of Air & Space Law and Policy
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• v.14
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• pp.133-150
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• 2001

• Defense and Technology
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• no.8 s.246
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• pp.66-77
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• 1999

지상전의 핵심 무기체계인 전차에서도 무인 정찰기나 인공 위성에 의한 정확한 정보획득으로 효율적인 지휘통제가 이루어지도록 $C^4I$체계, 전자감시체계 및 정밀타격체계 등을 하나의 통합체계로 구성하여 전투효율의 극대화와 다차원 동시 통합전투라는 미래 전장 운영개념인 전투관리 시스템(BMS:Battle Management System)이 연구 개발되고 있다

• Aerospace Industry
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• v.84
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• pp.34-37
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• 2004

1997년에 설립된 L-3 Commucinations사는 뉴욕시에 본사를 둔 정보, 감시, 정찰 제품, 보안통신시스템 제품, 항공해상 전자공학제품, 훈련용 제품, 마이크로파 소자와 원격측정장치, 계측기 , 우주및 무선제품 등에 있어 업계를 선도하는 업체이다.<중략>

• Defense and Technology
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• no.5 s.255
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• pp.48-57
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• 2000

새천년이 시작되는 21세기는 정보산업의 시대이고, 우리 군의 미래전력도 정보획득능력에 의해 결정될 것임은 부인할 수 없는 사실이다. 이제, 인공위성 이야기는 더 이상 우리의 머리위를 떠돌아 다니는 "남의 별"들의 이야기가 아닌, "우리 별"의 이야기여야 한다. 미국이나 프랑스를 중심으로 하는 위성 선진국들이 엄청난 규모의 위성시장을 놓고 눈에 보이지 않는 전쟁을 하고 있는 이 시기에, 2000년대를 맞이한 우리의 과제가 무엇인지는 명확해진다.

• Journal of Practical Agriculture & Fisheries Research
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• v.15 no.1
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• pp.153-168
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• 2013

• Journal of the Korea Society of Computer and Information
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• v.20 no.3
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• pp.57-67
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• 2015

In this paper, we proposed the geolocation method using target detection information in infrared images. Our method was applied to geolocation system of hostile targets in ground-to-ground field. The major distortion that has bad effect of geolocation was composed of optic, topography, GPS(Global Positioning System) and IMU(Inertial Measurement Unit) of reconnaissance unit. We proposed enhanced geolocation method to cope with optic and topography distortion using polynomial fitting and slant-range calculation model to overcome earth curvature problem, and the result showed that the performance of our method was good for system requirements.

• Journal of the Korea Institute of Military Science and Technology
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• v.23 no.2
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• pp.125-138
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• 2020

One of the most important steps to consider in utilizing micro-satellites for surveillance or reconnaissance operations is the design of the satellite constellation. The Walker-Delta constellation which is commonly used in designing satellite constellations is not ideal for this operation in which military satellites are required to monitor specific regions continuously in a stable manner. This study aims to discuss the methodology for designing a satellite constellation that is capable of monitoring the fixed region at the fixed time each day by using the Sun synchronous Orbit. The BB(Beach Ball) constellation that we propose outperforms the Walker-Delta constellation in terms of robustness and it holds the merit of being simple in its design, thereby making future expansions more convenient. We expect the BB constellation will have a high applicability as the operational concept of military surveillance satellites is established in the near future.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2009.11a
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• pp.278-281
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• 2009

The performance of aluminum bipolar plates was evaluated for the lightweight fuel cell system as a power source for a small reconnaissance UAV. Higher performance per weight was obtained from aluminum bipolar plates than the graphite bipolar plates. To check the influence of operating temperature, the performance of a single cell using aluminum bipolar plates was evaluated at 40 / 50 / $60^{\circ}C$. When dry hydrogen and air were used, the finest performance was obtained at $40^{\circ}C$, a lower operating temperature compared with usual operating temperatures.

• Journal of the Korean Society for Precision Engineering
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• v.31 no.9
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• pp.813-820
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• 2014

This paper presents design and performance validation of a method for motion compensation using fast steering mirror. First of all, the schematics of the Electro Optical/Infra-Red (EO/IR) and step-stare image gathering system for an aerial reconnaissance are introduced. Because of the steering mirror with low inertia so called Back scan mechanism (BSM), the fast step-stare image gathering technique that is required for taking a high-definition still image will be realized. After then, the BSM hardware includes motors and feedback sensors are introduced. Also, the motion profile for BSM will be designed to compensate roll scan motion of the gimbals. At the end of this paper, designed profile and tracking performance of the EO/IR system with BSM will be validated through experiments.