• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2015.05a
• /
• pp.962-963
• /
• 2015

첨단 과학기술의 발전으로 미래전은 정밀타격이 보편화되는 방향으로 발전할 것이며, 이때 정밀유도무기가 적의 핵심표적만을 선별 공격함으로써 빠른 시간 내에 적 전력의 기능을 마비시킬 수 있을 것이다. 그러나 최근 정밀유도무기에 적용되고 있는 GPS 유도방식은 재밍상황에 그 취약성을 들어 낼 수 있다. 따라서 본 논문에서는 GPS 유도방식인 정밀유도무기를 사용하여 공격할 경우 재밍에 대응하기 위한 방편의 하나로 방위각을 제어함으로써 재밍 대응이 가능한지 여부를 실험 및 분석하였다. 분석결과 방위각 140도까지는 제어 가능함을 확인하였다.

• Aerospace Industry
• /
• s.104
• /
• pp.60-61
• /
• 2009

흔히 바늘구멍 공격(pin point attack)이라 불리는 초정밀 지상 공격 능력은 현대 공군의 실력을 가늠하는 척도로 평가된다. 특히 초정밀 유도무기체계의 등장은 현대 공군의 위상은 물론 현대전에서 공군의 역할과 중요성을 더욱 배가시키고 있다. 다양한 형태의 초정밀 유도무기체계가 등장해 전장에서 활약하고 있는 지금, 표적획득에서 공격까지의 정밀 폭격에 대해 알아본다.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.20 no.3
• /
• pp.677-682
• /
• 2016

Recently, because Global Positioning System (GPS) achieves accuracy for engagement of enemy targets, GPS guided weapons have a wide range of applications from land through sea to air. Especially, when GPS guided weapon is then launched, it reads current position and searches a course to the target. As we all know, because GPS signals are weak, these signals can be affected by interference. If jamming signal is strong enough, it can jam the receiver of GPS guided weapon. Therefore, anti-jamming technique is an important thing under these conditions. In this paper, the controlling azimuth angle was used to improve navigation performance of precision guided missile under jamming conditions. First of all, precision missiles by GPS positioning such as SLAM-ER and JDAM were investigated. Also, the azimuth cutoff angle of satellites for usable navigation under jamming signals was analyzed by experimental tests. As a result, we found that azimuth cutoff angle under 140 degree can help ensure continuous GPS reception under the missile guidance.

• Journal of the Korea Society for Simulation
• /
• v.28 no.2
• /
• pp.131-137
• /
• 2019

The operation of the precision-guided missiles with seekers is becoming more and more dominant since the modern wars became geographically localized like anti-terror campaigns and civil wars. Imaging seekers are relatively low-price and applicable to various operational conditions. The image tracker, however, requires highly advanced method for the target tracking under harsh missile flight condition. Missile roll can reduce the tracking performance since it introduces big differences in imagery. The missile roll is inevitable because of the disturbance and flight control error. Consequently, the errors of the subsystems should be under control for the stable performance of the tracker and the whole system. But the performance prediction by some simple metric is almost impossible since the target signature and the tracker are highly nonlinear. We established M&S tool for a precision-guided missile with imaging seeker and analyzed the roll effects to tracking and system performance. Furthermore, we defined the specification of missile subsystems through error analysis to guarantee system performance.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.12
• /
• pp.193-197
• /
• 2016

The performance of Precision Guided Missiles is estimated by using hit probability only, which is calculated by hits against total amounts of fires in current domestic live-fire tests. It has a limitation in judging the performance of all produced Precision Guided Missiles by using the calculated hit probability according to the result of live-fire test, because the overall characteristics of the produced Precision Guided Missiles are not considered. In other words, a method is needed to estimate the confidence level which is more reliable than simply calculated hit probability according to the result of live-fire test for guaranteeing the hit probability of Precision Guided Missiles by certain level, which is already being operated or produced. This paper introduces a method to estimate the confidence level of Precision Guided Missiles by minimum live-fire tests using Hypergeometric distribution and Bayes' rule suitable for the characteristics of Precision Guided Missiles, which are small production, high costs and unable to check whether the missile hits the target or not before the live-fire tests. Also, this paper suggests a reasonable confidence level for showing the performance of the Precision Guided Missiles using the results of live-fire tests and domestic and foreign literature, when the result of live-fire tests will be decided.

• Defense and Technology
• /
• no.5 s.17
• /
• pp.6-14
• /
• 1980

• Defense and Technology
• /
• no.12 s.82
• /
• pp.31-34
• /
• 1985

• Defense and Technology
• /
• no.7 s.55
• /
• pp.5-10
• /
• 1983

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.23 no.4
• /
• pp.365-373
• /
• 2019

An Image Infra-Red(IIR) seeker is widely used for precision guided munitions to provide intelligent and precise target detection in terms of high kill probability. However, there have been issues in determining the performance versus cost trade-offs due to high cost of seeker comparing to other units of the munitions. In this paper, performance/cost evaluations have been carried out to find the most cost-effective solution for developing the IIR seekers. The relationships between the critical parameters and cost are investigated to determine the optimal point which represents the low cost with high performance. It is expected that the presented approach will be able to be used for guidelines to select the appropriate IIR seeker for the given operating conditions and can be useful to estimate the cost effectiveness of the precision guided munitions at early design stage.

• Defense and Technology
• /
• no.3 s.121
• /
• pp.52-61
• /
• 1989

화력장비혁명의 내용을 알려면 단순히 정밀유도무기나 레이저 유도무기군만을 볼것이 아니라 전반적인 화력장비 차원에서의 잠재력을 살펴야 한다. 화력장비의 성능은 감시능력, 목표식별, 목표포착, 발사계획 및 조종통제, 파괴력 그리고 각 구성체계간의 신뢰성 있는 통신 능력에 달려있다. 이러한 기반위에서 각 요소들은 계속 기술적으로 발전하고 있다. 우리는 컴퓨터나 발전된 통신기술에 의해서 우선적으로 가능하게 된 자동전투관리시스템(ABMS)의 발전을 생각해야 한다