• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.535-538
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• 2008

국방에서 사용되는 소프트웨어는 미션 크리티컬(Mission Critical)한 고 품질의 소프트웨어가 요구된다. 이를 위해 많은 조직에서는 전체 개발 프로세스를 개선하기 위한 목적으로 CMMI를 적용하고 있으나 테스트 프로세스를 개선하는 데는 부족함이 있어 고 품질의 소프트웨어를 생산하는데 어려움이 따르고 있다. 더욱이 국방이라는 특수한 도메인에서는 그러한 현상이 빈번히 발생함에 따라 국방 도메인에 적합한 테스트 성숙도 모델의 필요성이 제기되었으며 이를 위해 국방 시험 성숙도 모델(MND-TMM)이 개발되었고 현재 시험 적용 중이다. 본 논문에서는 현재 무기체계 소프트웨어를 개발하는 조직에서 전체 개발 프로세스를 개선하기 위해 CMMI를 적용하고 있기에 테스트 프로세스를 개선하기 위한 모델인 MND-TMM과 CMMI를 비교 분석하여 두 모델의 강점과 약점을 제시하고 상호연계방안을 모색한다. 상호연계를 통해 국방 소프트웨어 개발 조직에서는 두 모델을 적용하는데 있어 비용 및 시간을 줄이고 소프트웨어의 품질을 향상시킬 것으로 기대한다.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.26 no.11
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• pp.13-20
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• 2008

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.25 no.11
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• pp.45-50
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• 2007

• Korea Information Processing Society Review
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• v.14 no.6
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• pp.63-71
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• 2007

• Korea Information Processing Society Review
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• v.15 no.6
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• pp.14-24
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• 2008

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.26 no.11
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• pp.27-32
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• 2008

• Journal of the Korea Society for Simulation
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• v.26 no.3
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• pp.73-86
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• 2017

Environmental data plays an important role to enhance the reliability of experimental results in M&S(Modeling and Simulation). Especially in Military M&S, extreme weather events can be used for virtual training and simulation importantly. However, the environmental data is huge and it is dispersed among multiple organizations. It is difficult for M&S operators to select the date and area where the weather phenomenon occurs in the real environmental data and to acquire them. Environmental data retrieval technology based on Fuzzy criteria is one of the important technologies for developing Environmental Scenario Generator. As a result of this study, a fuzzy retrieval algorithm composed of four main parameters(RV, MF, FRA, and MRV) was presented. This study suggests that the RV can be used as 14 m/s for wind speed and 80 mm/d for precipitation to search the date of storm accompanied by high wind. The MF, the FRA, and MRV can be used sigmoid, 0.2, and 1 respectively. The algorithm proposed in this study is expected to be very useful for searching the date on which weather phenomena necessary for simulation occurred.

• Journal of the Korea Society for Simulation
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• v.23 no.4
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• pp.211-218
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• 2014

The Test and Evaluation (T&E) system became more important due to its advancement and complexity of the weapon system. Time and cost saving T&E related studies are in progress mainly with advanced countries. By utilizing the Modeling and Simulation (M&S) technology recently, we may save time and money. Also, overcome security and safety limitations. There are many M&S based research activities in South Korea but it is way behind of the system that some countries already have developed. i.e.; United States. This area of study requires new way of developing strategies in the T&E system of Korea. This study is to design the Operational T&E system for weapon systems based on modeling of processes. And we modeled the processes of operational performance evaluation through utilizing resources and performance modules of weapon systems and combined it with the simulation engine for 3D visualization. Through this, we propose the Operational T&E system for weapon systems based on modeling of processes that represent operational performances visually.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.43 no.1
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• pp.23-32
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• 2015

Modeling of fighter pilots, which is a fundamental technology for war games using defense M&S (Modeling & Simulation) becomes one of the prominent research issues as the importance of defense M&S increases. Especially, the recent accumulation of combat logs makes it possible to adopt statistical learning methods to pilot modeling, and an HMM (Hidden Markov Model) which is able to utilize the sequential characteristic of combat logs is suitable for the modeling. However, since an HMM works only by using one type of features, discrete or continuous, to apply an HMM to heterogeneous features, type integration is required. Therefore, we propose a dPCA-HMM method, where dPCA (Discrete Principal Component Analysis) is combined with an HMM for the type integration. From experiments conducted on combat logs acquired from a simulator furnished by agency for defense development, the performance of the proposed model is evaluated and was satisfactory.

• Journal of the Korea Institute of Military Science and Technology
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• v.25 no.2
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• pp.196-209
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• 2022

Driving dynamic characteristics of semi-trailer loaded with precise equipments are very important to protect them from vibration, impact or other disturbances. In this paper, in order to identify the driving dynamic characteristics of the large scale semi-trailer equipped with swivel axle and hydropneumatic suspension unit, Dynamics Modeling & Simulation(M&S) were performed using general Dynamics Analysis Program(RecurDyn V9R2). The semi-trailer was modeled as two types - one is Multi Rigid Body Dynamics(MRBD) model, and the other Rigid-Flexible Body Dynamics(RFlex) one. The natural vibration mode and frequencies of semi-trailer body, acceleration of dummy-weight, pitch, roll and yaw of dummy-weight, swivel axle and hydropneumatic suspension cylinder support structure, and acting force of hydropneumatic suspensions etc. were obtained from the M&S. Additionally frequency analysis were performed using the data of behavior obtained from above M&S. Generally the quantitative results of RFlex are larger than them of MRBD in view of magnitude of the comparable parametric values.