• 한국항행학회논문지
• /
• 제19권5호
• /
• pp.363-369
• /
• 2015

본 논문은 잠수함 발사 탄도미사일(SLBM) 탐지를 위한 해상 센서플랫폼의 배치에 관한 연구이다. 최근 북한은 SLBM의 수중 사출시험을 실시하였으며 이는 국제사회에 심각한 안보 위협이 되고 있다. 이러한 위협에 효과적으로 대응하기 위해 기동이 가능한 해상 센서플랫폼은 SLBM의 탐지 가능성이 높은 위치에 배치되어야 한다. 그러나 전형적인 레이더 센서체계의 최대탐지거리 특성은 표적의 비행궤적과 레이더 반사 단면적(RCS)에 따라 달라진다. 이러한 관점에서 본 연구는 SLBM의 전술적 특성에 따른 비행궤적을 분석하고, RCS를 계산하였다. 또한 센서 플랫폼의 위치에 따른 탐지 시간을 분석하여 효과적으로 SLBM을 탐지할 수 있는 해상 센서 플랫폼의 위치를 제시하였다.

• 국방과기술
• /
• 5호통권159호
• /
• pp.38-45
• /
• 1992

현존하는 유도탄은 대륙간탄도탄(ICBM)과 같은 유도탄(Ballistic Missile)에서부터 비행기에 흡사한 순항유도탄(Cruise Missile)에 이르기까지 종류가 다양하다. 유도탄은 사용목적에 따라 전략유도탄과 전술유도탄으로 구분되는데, 전략유도탄은 핵탄두를 갖고 있으며 전쟁억제를 목적으로 하고 전술유도탄은 실전에 사용하기 위해 만들어진 것이다. 이 글에서는 주로 전술유도탄을 중심으로 흔히 오토파일럿(Automatic Pilot)이라 부르는 기술현황과 그 개발추세를 살펴보기로 한다

• 한국경영과학회:학술대회논문집
• /
• 한국경영과학회/대한산업공학회 2005년도 춘계공동학술대회 발표논문
• /
• pp.1020-1025
• /
• 2005

The set covering(SC) problem has many practical application of modeling not only real world problems in civilian but also in military. In this paper we study optimal allocation model for maximizing utility of consolidating old fashioned and new air defense weapon system like Patriot missile and develop the new computational algorithm for the SC problem by using simulated annealing(SA) algorithm. This study examines three different methods: 1) simulated annealing(SA); 2) accelerated simulated annealing(ASA); and 3) selection by effectiveness degree(SED) with SA. The SED is adopted as an enhanced SA algorithm that the neighboring solutions could be generated only in possible optimal feasible region at the PERTURB function. Furthermore, we perform various experiments for both a reduced and an extended scale sized situations depending on the number of customers(protective objective), service(air defense), facilities(air defense artillery), threat, candidate locations, and azimuth angles of Patriot missile. Our experiment shows that the SED obtains the best results than others.

• 한국군사과학기술학회지
• /
• 제23권4호
• /
• pp.426-434
• /
• 2020

This paper studies the impact of the maintenance time of anti-ship missile Harpoon on operational availability with real field data. The Harpoon maintenance simulation model is developed as a testbed for identifying the optimal inventory levels on operational availability. Using multiple linear regression analysis and integer programming, the optimal inventory levels of essential assemblies are suggested. Finally, the result of sensitivity analysis shows the quantitative impact of maintenance time on operational availability and inventory costs. The authors believe that this quantitative analysis can support policy decisions to decrease maintenance time of missiles.

• 한국신뢰성학회지:신뢰성응용연구
• /
• 제17권2호
• /
• pp.83-91
• /
• 2017

Purpose: The purpose of this study is to develop a quality assurance model and to determine appropriate warranty period for a guided missile using its field data. Methods: 10 years of actual firing data is collected from the defense industry company and military. Parametric maximum likelihood estimation for a reliability function is determined with the data. Results: The reliability function estimates average lifetime of the missile. That function shows a user requirement, 80% reliability (lifetime) is come up when 8 years have passed, which is longer than the estimates in the missile's development phase. Conclusion: Quality assurance warranty for a guided missile must be established with actual test data. It is necessary to update and modify the reliability prediction and the warranty period with actual field test data.

• 한국안전학회지
• /
• 제29권4호
• /
• pp.180-183
• /
• 2014

The purpose of this study is to assess for scattering object for the missile ejection round due to analysis of the human body effectiveness safely. To achieve this goal the measurement method of scattering objects by comparative 2 measurement methods studied, the risk of scattering of the object is evaluated. Result of this study, applied in Europe and Japan, based on the safety criteria for the human body effectiveness when missile ejection round. data showed is not effectiveness to the operator's body safely. Data showed that satisfies the safety criteria for missile ejection round in Europe and Japan through the similarity for the case studies. In case of these safety criteria does not exist regulation in South Korea, this study will be referred as guidelines are considered.

• 한국전산유체공학회지
• /
• 제20권2호
• /
• pp.16-22
• /
• 2015

The pressure is generally lower than that of the freestream at the base of a missile body due to the energy loss by the flow separation around the edge of the base. The base pressure changes in the presence of the thrust jet due to the interaction between the base flow of the missile and the jet flow. In this study, behavior of the missile base pressure by the change of the jet exit pressure and the freestream condition is investigated using the CFD(Computational Fluid Dynamics) method. Effects of the grid type and the freestream condition are tested. The results are compared with the semi-empirical predictions and the flight test data. The CFD results agree well with the flight test data. The semi-empirical predictions overestimate the base pressure when jet thrust is strong for low freestream speed.

• 한국군사과학기술학회지
• /
• 제21권5호
• /
• pp.665-674
• /
• 2018

In this paper, we propose a development results of a D-type non-rechargeable lithium battery($Li/SOCl_2$) on improvement in a low cost protection circuit of discharge for domestic military power source. According to this study, we describe a new design and product with 8-bit microcontroller in the protection circuit which can estimate state of health of the battery regardless of occurring an initial voltage delay. Also this paper discuss and facilitate development as solution to a safety about the non-rechargeable lithium batteries. As a result, we verified a quality of the protection circuit by a development test and evaluation(DT&E) process.

• 한국군사과학기술학회지
• /
• 제13권6호
• /
• pp.1019-1025
• /
• 2010

This paper describes on methods in test and evaluation of the guided rocket munitions of the domestic new generation multiple launcher rocket system. We modified and refer to the present model of air-to-air missile(AAM) and surface-to-air missile(SAM). Also we suggested a method of surface-to-surface missile(SSM) based on the characteristics of the guided rocket in test and evaluation(T&E). According to this study, the suggested activity of T&E should be observed methods compatible with each item on the established model. Therefore, we expect that the proposed research material will be a good guide to the study of a surface-to-surface missile(SSM) installed GPS/INS integration navigation guidance & control systems in the future.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2015년도 추계학술대회
• /
• pp.462-464
• /
• 2015

최초의 이지스 순양함인 타이콘데로가함(USS Ticonderoga)이 건조된 이후 알레이버크급(Arleigh Burke class) 구축함이 미 해군 수상함 전력의 주력함으로 양산되고 있으며, 지속적으로 성능을 개량하여 최근에는 최신형 이지스 전투체계 버전인 베이스라인 9(Baseline 9)가 전력화 되었다. 미 해군은 이지스함에 탄도미사일 방어체계 능력을 탑재한 이지스 BMD를 탄도미사일 방어체계의 일부분으로 운용하고 있으며, 증가하는 탄도미사일의 위협에 보다 효과적으로 대응하기 위해 DDG-51 Flight III부터 기존의 AN/SPY-1D 보다 대공 성능이 향상된 AMDR(Air & Missile Defense Radar)를 탑재할 예정이다. 본 논문에서는 미국의 이지스함의 발전 현황과 기술적 특징에 대해 연구하고 AMDR의 특성에 대해 조사하여 기술하였다.