• Proceedings of the Korea Information Processing Society Conference
• /
• 2010.11a
• /
• pp.232-235
• /
• 2010

최근 국방 소프트웨어 분야에서는 모델링 및 시뮬레이션 기술이 각광받으면서 무기체계 개발을 위한 시뮬레이션 소프트웨어 개발 사업을 늘리고 있다. 특히, 시뮬레이션 요소의 재사용성 및 신뢰성 확보를 위한 개발 프레임워크 제공이 핵심기술로 떠오르면서, 시뮬레이션을 위한 공통 서비스를 제공하는 M&S 프레임워크가 개발되었다. 하지만 고객의 요구사항이 프레임워크의 기능 변경을 요구하는 경우 프레임워크가 적용된 모든 시뮬레이션 요소의 수정이 불가피하며, 추가 구성요소의 상호작용을 위한 인터페이스 재설계가 요구된다. 본 논문은 이러한 문제점을 해결하기 위해서 프레임워크의 요소를 DLL로 구현하여 기능 구성을 용이하게 하고, 구성요소 간 상호작용을 위해 데이터 기반 Publish-Subscribe 방식을 사용함으로써 프레임워크와 독립적으로 인터페이스를 설계할 수 있도록 한다. 특히, 프레임워크와 DLL 간 교환 메시지 객체에 대한 구조 설계를 제시한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2011.11a
• /
• pp.1555-1558
• /
• 2011

국방 모델링 및 시뮬레이션(Modeling & Simulation) 소프트웨어 분야에서 분산 시뮬레이션 기술표준인 HLA(High Level Architecture)의 적용이 늘어나고 있으며, 시뮬레이션 요소의 재사용성 및 신뢰성 확보를 위한 개발 프레임워크 제공이 핵심기술로 떠오르고 있다. 특히, 시뮬레이션을 위한 공통 서비스를 제공하는 M&S 프레임워크가 개발되었다. 또한, 가상의 시험 환경을 제공하기 위한 요소 중 시험환경의 구성을 위한 시나리오 모델이 있다. 본 논문에서는 시험 환경을 구성하기 위한 M&S 프레임워크 내의 시나리오의 스키마 설계에 대해서 기술한다.

• Convergence Security Journal
• /
• v.13 no.1
• /
• pp.37-43
• /
• 2013

In 2010, the Ministry of National Defense decided to build a MegaCenter including the cloud computing technology by 2014, as part of the '2012 Information Service Plan', which is now underway. The Cloud computing system environment should be designed applying cloud computing technology and policy for an efficient infrastructure that many IT resources are available in the data center as a concentrated form. That is, the system should be designed in such a way that clouding services will be efficiently provided to meet the needs of users and there will not be unnecessary waste of resources. However, in order to build an optimal system, it should be possible to predict the service performance and the resource availability at the initial phase of system design. In this paper, using the CloudAnalyst simulator to predict availability of the K-defence cloud computing system service, conducts cloud modeling and analysis of the 'Facebook', one of the most famous social network service applications with most users in the world. An Optimal K-Defense cloud computing design model is proposed through simulation results.

• Journal of the Korea Society for Simulation
• /
• v.20 no.3
• /
• pp.79-88
• /
• 2011

In most existing warships combat simulation system, the tactics of a warship is manipulated by human operators. For this reason, the simulation results are restricted due to the stereotype of human operators. To deal with this, we have employed the genetic algorithm for supporting the evolutionary simulation environment. In which, the tactical decision by human operators is replaced by the human model with a rule-based chromosome for representing tactics so that the population of simulations are created and hundreds of simulation runs are continued on the basis of the genetic algorithm without any human intervention until to find emergent tactics which shows the best performance throughout the simulation. This paper proposes an evolutionary tactics generation methodology for the emergent tactics in many-to-many warship combat simulation. To do this, 3:3 warship combat simulation tests are performed.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2019.10a
• /
• pp.708-709
• /
• 2019

최근 국방 분야는 모델링 및 시뮬레이션 기술을 활용한 시뮬레이터 개발 사업을 늘리고 있으며, 특히 실 환경에서 시험하기 어려운 다양한 기능과 성능을 시험하기 위해 무기체계 시뮬레이터와 실 장비를 상호 운용할 수 있는 방안을 마련하고 있다. 본 논문은 함정에 탑재되는 대공유도무기체계 개발에 필요한 시뮬레이션 환경을 구축하는데 있어 시뮬레이션과 실환경을 상호 운용할 수 있는 시뮬레이터 설계 방법을 다루며, 특히 소프트웨어로 구현된 다양한 센서 모델과 실 환경에서 운용되는 레이더 및 표적기의 통합 운용이 용이한 센서 시뮬레이터의 구조를 보여준다.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.14 no.5
• /
• pp.825-836
• /
• 2019

The drone-type base station will be an optimal platform as a way of information sharing for efficient operation of the military force due to their high network flexibility. It is expected that the characteristics of the drone-type base station which would freely adjust the altitude can be used to offset the propagation attenuation characteristics of the millimeter-wave frequency band by securing the stable Line of Sight. In this paper, we proposed a framework for evaluation drone-type base station that can be utilized as a future military communication network by performing modeling for performance analysis that can reflect various factors.

• Journal of the Korea Society for Simulation
• /
• v.30 no.1
• /
• pp.11-20
• /
• 2021

As unmanned underwater systems have recently emerged, a high-speed underwater channel modeling technique, which is one of the most important techniques in the system, has received a lot of attention. In this paper, we proposed a high-speed sound propagation model and verified the applicability through quantitative performance analyses. We used a high-order finite difference method (FDM) for wave propagation modeling in the water, and a domain decomposition method was adopted using multiple general-purpose graphics processing units (GPUs) to increase the calculation efficiency. We compared the results of the model we proposed with the analytic solution in the half-infinite media and results of the Virtual Timeseries Experiment (VirTEX) model, which is based on the ray method. Finally, we analyzed the performance of the model quantitatively using numerical examples. Through quantitative analyses of the improvement in computational performance, we confirmed that the computational speed increases linearly as the number of GPUs increases. The computation times are increased by 2 times and 8 times, respectively, when the domain size of computation and the maximum frequency are doubled. We expect that the proposed high-speed underwater channel modeling technique is able to contribute to the enhancement of national defense as an underwater communication channel model and analysis tool to develop the underwater communication technique for the unmanned underwater system.

• Journal of the Korea Society for Simulation
• /
• v.27 no.4
• /
• pp.47-60
• /
• 2018

Today's unmanned technology, which is being used in various industries, is expected to be able to make autonomous judgements as autonomous technology matures, in the long run aspects. In order to improve the usability of unmanned system in the military field, it is necessary to develop a technique for systematically and quantitatively analyzing the efficiency and effectiveness of the unmanned system by means of a substitute for the tasks performed by humans. In this paper, we propose the method of representing rule-based tactical behavior and modeling manned and unmanned reconnaissance agents that can effectively analyze the path alternatives which is required for the future armored cavalry to establish a reconnaissance mission plan. First, we model the unmanned ground vehicle, small tactical vehicle, and combatant as an agent concept. Next, we implement the proposed agent behavior rules, e.g., maneuver, detection, route determination, and combatant's dismount point selection, by NetLogo. Considering the conditions of maneuver, enemy threat elements, reconnaissance assets, appropriate routes are automatically selected on the operation area. It is expected that it will be useful in analyzing unmanned ground system effects by calculating reconnaissance conducted area, time, and combat contribution ratio on the route.

• Journal of the Korea Society for Simulation
• /
• v.19 no.3
• /
• pp.81-89
• /
• 2010

Recent modeling and simulation technology is being used in various fields. Especially in the field of military, Simulation-Based Acquisition (SBA) is recognized as a essential policy. To effectively carry out SBA, modeling and simulation techniques should be applied in the whole life-cycle for the weapon system development, and simulation architecture framework which provides easily reusable and interoperability is needed. Through reusability and interoperability, the costs of constructing the integrated collaborate environment for simulation based acquisition can be minimized. In this study, we define requirements, issues for enhancing reusability and interoperability, and propose simulation framework as a solution of the problem including structural design. Proposing simulation framework provides common functions for producing simulator as reusable units and easily changeable structure on user's purpose. In addition, we provide the result for applying simulation framework to our project.

• Journal of the Korea Institute of Military Science and Technology
• /
• v.26 no.1
• /
• pp.91-101
• /
• 2023

Modeling and Simulation(M&S) technology has been widely used to solve constraints such as time, space, safety, and cost when we implement the same development and test environments as real warfare environments to develop, test, and evaluate weapon systems for the last several decades. The integration and test environments employed for development and test & evaluation are required to provide Live Virtual Construction(LVC) simulation environments for carrying out requirement analysis, design, integration, test and verification. Additionally, they are needed to provide computing environments which are possible to reconfigure computing resources and software components easily according to test configuration changes, and to run legacy software components independently on specific hardware and software environments. In this paper, an Integration Test and Simulation for Engagement Control(ITSEC) bed using a bare-metal virtualization mechanism is proposed to meet the above test and simulation requirements, and it is applied and implemented for an air missile defense system. The engagement simulation experiment results conducted on air and missile defense environments demonstrate that the proposed bed is a sufficiently cost-effective and feasible solution to reconfigure and expand application software and computing resources in accordance with various integration and test environments.