• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.8
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• pp.3492-3496
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• 2011

In Korea Defence in the field of modeling and simulation quite low compared to international levels, and Research & Development and acquisition of weapon systems do not address the reliability in the area is a Free. Thus, in this study using computational fluid dynamics engineering in terms of M & S and the applicability of the present, Future research and development of an effective weapons system acquisition would like to take advantage.

• Journal of the Korea Society for Simulation
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• v.26 no.2
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• pp.41-49
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• 2017

In the acquisition program, the conceptual design is the most important step toward specifying the military objectives, establishing requirements and determining future developmental directions, of a target system. However, if both the requirements and directions are incorrectly set due to the lack of development experiences and literature backgrounds in the target systems, such as future ground combat vehicles, it may become a major risk in the future design phases and the entire acquisition program. In order to correct these errors in the future phases, time, effort and cost are required. Therefore, it is necessary to reduce the errors that occur in the initial stages to effectively acquire the future ground combat vehicles. This paper describes the initial design method for verifying the requirements and the developmental directions and estimating the system performance at the conceptual design through the system-level physical modeling and simulation (M&S) and the target system performance analysis. The system-level physical M&S use cutting-edge design tools, model-based designs and geometric-based designs. The system performance estimation is driven from the results of the system-level physical M&S and the specialized system analysis software.

• Journal of the Korea Society for Simulation
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• v.30 no.2
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• pp.23-31
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• 2021

Defense M&S(Modeling & Simulation) requires weapon effectiveness index which indicates Ph(Probability of hit) and Pk(Probability of kill) values on various impact and environmental conditions. The index is usually produced by JMEM(Joint Munition Effectiveness Manual) development process, which calculates Pk based on the impact condition and circular error probable. This approach requires experts to manually adjust the index to consider the environmental factors such as terrain, atmosphere, and obstacles. To reduce expert's involvement, this paper proposes a meta-model based method to produce weapon effectiveness index. The method considers the effects of environmental factors during calculating a munition's trajectory by utilizing high-resolution weapon system models. Based on the result of Monte-Carlo simulation, logistic regression model and Gaussian Process Regression(GPR) model is respectively developed to predict Ph and Pk values of unobserved conditions. The suggested method will help M&S users to produce weapon effectiveness index more efficiently.

• Convergence Security Journal
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• v.20 no.1
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• pp.77-84
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• 2020

Due to the lack of a system that can detect/identify and strike North Korea's small unmanned aerial vehicles, no immediate response was made. In order to solve the problem of response, we should prepare for threats by developing weapons systems that can be immediately hit when identifying small-sized unmanned aerial vehicle detection radar and creating specialized research organizations for research and development of equipment.

• Journal of the Korea Society for Simulation
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• v.22 no.2
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• pp.63-71
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• 2013

Developing future weapons systems has become increasingly complicated and costly. There, modeling and simulation techniques have been highly interested in developing the defense systems. Modeling and simulation techniques provide a means to simulate military training, strategies, military doctrines, and weapons acquisition. In this paper, we proposed a small scale engagement scenario generation method for engagement M&S model. Generated scenario is one of critical factors in the field of commander training, operational analysis, and tactical evaluation. The objective of this paper is to develop a scenario generation method for small scale engagement using the FSA(Finite State Automata) and DFS(Depth First Search) algorithm. The proposed method is verified using a one-on-one combat engagement scenario between assault ship and reconnaissance ship. Also, we are visualized using Delta3D$^{TM}$.

• Journal of the Korea Society for Simulation
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• v.20 no.4
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• pp.167-175
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• 2011

Concerning the effectiveness of command and control is increasing worldwide as future warfare is changing into Network Centric Warfare (NCW). Unlike the old attrition warfare that depends mainly on mobility and strike assets, the modern warfare is based on information and network which regards acquisition and circulation of information as important. Therefore, there's no room for rediscussion that C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance) system will play an important role in warfare. In spite of this fact, there isn't any way to explain clearly how to measure the effectiveness of command and control system in a battle and to reflect it systematically in a system effectiveness. In this study, we examined NCO-CF (Network Centric Operations-Conceptual Framework), developed by the Department of Defense (DOD), which can conceptually explain the increment of effectiveness of C4ISR system that is the basis of NCO. And we suggested methodology based on NCO-CF to establish the evaluation criteria for M&S analysis of command and control effectiveness. As a case study we derived the evaluation criteria for the command and control system in joint operations by applying the suggested methodology.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.29 no.10
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• pp.65-71
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• 2011

• Proceedings of the KIEE Conference
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• 1999.07a
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• pp.489-491
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• 1999

본 연구에서는 경부고속철도 수익관리시스템 구축방안 연구의 일환으로 철도에 수익관리기법을 도입의 타당성과 그 효과를 검토하기 위하여 현재의 철도에서 사용되고 있는 예약체계, 운임체계 및 좌석할당 방법을 분석하였다. 지금까지 널리 사용되고 있는 여러 가지 수익관리기법을 적용하기 위한 조건을 제시하였으며, 예약실적자료를 사용하여 그 효과를 계산하였다.

• 주택과사람들
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• s.5
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• pp.97-110
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• 1990

본 자료는 밀즈(Edwin S. Mills)교수가 세계은행으로부터 용역을 의뢰받아 작성한 보고서 중 우리나라의 토지공급체계에 관한 부분을 발췌한 것으로 공사 이송만 부사장이 세계은행 선임경제연구원인 한나(Lawerence M. Hannah)씨의 양해를 얻어 번역게재하게 된 것임. 필자인 밀즈교수는 미국 노스웨스턴 대학 켈로그(Kellogg)경영대학원 교수로서 부동산 조사연구소 소장을 겸임하고 있으며 부동산 및 재정분야에서 세계적으로 널리 알려진 학자임.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.359-361
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• 2015

통신 미들웨어는 통신 개체들간의 연동 시뮬레이션 및 대규모 통신을 목적으로 개발되었으며 이는 국방용 대규모 시뮬레이션인 L-V-C(Live-Virtual-Constructive) 연동에 사용된다. L-V-C 연동을 위해서 L 체계에서 사용하는 미들웨어인 DDS와 V-C 체계에서 사용하는 미들웨어인 RTI의 연동을 하여 이기종간 미들웨어 연동을 구현하였다. 각 미들웨어들은 통신 품질을 보장하기 위해서 QoS(Quality of Service) 기능을 제공한다. 이종 미들웨어의 연동 시 상호간의 통신 품질을 유지하기 위해서 미들웨어간의 QoS 호환이 필요하다. 이를 위하여 각 미들웨어간 QoS 설정을 비교하였으며, 이를 구현하였다.