• 제목/요약/키워드: Defence Science and Technology

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위성 전군방공경보체계 QPSK 모뎀 설계 (QPSK Modem Design of Satellite Air-defence Warning System)

  • 김영훈
    • 한국군사과학기술학회지
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    • 제18권6호
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    • pp.755-761
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    • 2015
  • Satellite Air-defence Warning System receives the aircraft/ballistic track information and air defense control command obtained from Master Control & Reporting Center (MCRC) and Air Missile Defence Cell (AMD Cell) Systems. It consists of terminal and control system to propagate track information and air defense control command control via the military satellite communications. In this paper, there were described track information, air defense control command, the frame structure of modem to transmit a voice information and modulation/demodulator design, network synchronization methods via the satellite network.

무기체계의 효과분석과 의사결정을 위한 다기준분석 방법론의 연구 (A Study on the Multi-Criteria Decision Making for Effect Analysis and Decision Making of Weapon System)

  • 임성훈;조기홍;박승
    • 한국군사과학기술학회지
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    • 제12권5호
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    • pp.557-562
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    • 2009
  • Weapon system currently considers the research about effect analysis including cost effectiveness methodology for a budget management and an achievement of the military strategy goal. So that, this study considers the theoretical background, strength and weakness of several Multi-Criteria Decision Making, and an effect analysis of weapon system. And AHP(Analytic Hierarchy Process) is selected for the best effect analysis methodology of weapon system. Therefore, we applied AHP to the case study of the new generation Multiple Launcher Rocket System, performing the analysis of cost effectiveness methodology. Using AHP and cost effectiveness methodology, we propose the actual and proper decision making result.

관성항법장치를 이용한 K2전차 전차포 자세측정 방법 및 명중률에 미치는 영향에 대한 연구 (A Study on Measurement of Gun's Attitude of K2 MBT Using Inertial Navigation System and Its Effects on the Hit Probability)

  • 김성호;김건국;권혁민;유석진;박병훈;이병길;김의환
    • 한국군사과학기술학회지
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    • 제19권2호
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    • pp.218-226
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    • 2016
  • In the original design of K2 tank the Vertical Sensor Unit(VSU) was mounted to measure the attitude of the main gun to enhance the hit probability. In this research, as a part of efforts to reduce the cost of K2, it was theoretically simulated and evaluated to use the data from Inertial Navigation System(INS) for the calculation of the gun attitude instead of the direct measurement using VSU. It was found that the negative effect of INS approach is negligible and the elimination of VSU is technically possible and beneficial to the system.

국방 연구개발사업의 "운용자-개발자"간 연계성 향상을 위한 아키텍처 개발 방법에 대한 연구 (A Study on Architecture Development Methodology for the Improvement in the Connection between User and Developer in the Defence R&D Program)

  • 최정훈;강석중
    • 한국군사과학기술학회지
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    • 제13권6호
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    • pp.1113-1120
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    • 2010
  • In this paper, we have proposed Architecture Development methodology which can connect both operational view and system view. The Functional Architecture can connect both user and developer, and it is located between Activity analysis and System analysis. We suggest the new architecture methodology using the Functional Architecture and it provides effect to analyze the connection between user(military) and developer(enterprise) in Defence R&D and the new Architecture with the feedback analyze activity on a point of system view and the new architecture make the functional architecture.

제4차 산업혁명 기반의 국방과학기술 개발 동향 (Development Trends of Defense Science and Technology based on the 4th Industrial Revolution)

  • 정유현;김성남;박혜숙
    • 전자통신동향분석
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    • 제35권6호
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    • pp.56-67
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    • 2020
  • The core technologies of the 4th Industrial Revolution, such as artificial intelligence, the Internet of Things, the cloud, big data, and mobile networks, are inspiring major changes and innovations in the defense sector worldwide. The United States, China, and Russia are pursuing defense research and development strategies that seek to maintain their leadership on the battlefield in the future through the overwhelming superiority of defense science technology. Defense science and technology concentrate on the development of challenging new disruptive technologies to efficiently respond to future battlefield environments, where the immediate process of determining the outcome of a war will lead to combat power. In this paper, we first look at the development strategies of the 4th Industrial Revolution in major countries and describe the latest trends in defense science and technology accordingly.

국방모델 개발을 위한 공통 모의논리 제안과 활용방안에 관한 연구 (A Suggestion of Common Analysts' Guidance and it's Utilisation)

  • 권혁래;구본임;이태억;임종원
    • 한국군사과학기술학회지
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    • 제15권6호
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    • pp.754-760
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    • 2012
  • To improve the efficiency and economics of national defence, the needs for defence M&S systems are greatly increased, but the lack of interoperability and reusability lowers the level of reliability in the existing simulations models. Recently, many research activities have been performed and some conceptual models, such as CMMS, DCMF, and KAMA, were introduced. However, these models don't support the whole process of defence M&S system development nor provide integrated domain knowledge and up-to-date data. In this paper, we analyzed the analysts' guidances and doctrines, which are the basic ingredients for the simulation system development, and proposed a systematic structure for all the defence M&S stakeholders to share the standardized domain knowledge, modeling algorithm and data. This will be a logical bridge between Mission Space and Simulation Space, and provide substantial data sets to build simulation systems.

적기의 위협 평가 자동화를 위한 퍼지 규칙 방법론 (Fuzzy Rule-Based Method for Air Threat Evaluation)

  • 최병주;김지은;김진수;김창욱
    • 한국군사과학기술학회지
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    • 제19권1호
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    • pp.57-65
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    • 2016
  • Threat evaluation is a process to estimate the threat score which enemy aerial threat poses to defended assets. The objective of threat evaluation is concerned with making an engagement priority list for optimal weapon allocation. Traditionally, the threat evaluation of massive air threats has been carried out by air defence experts, but the human decision making is less effective in real aerial attack situations with massive enemy fighters. Therefore, automation to enhance the speed and efficiency of the human operation is required. The automatic threat evaluation by air defense experts who will perform multi-variable judgment needs formal models to accurately quantify their linguistic evaluation of threat level. In this paper we propose a threat evaluation model by using a fuzzy rule-based inference method. Fuzzy inference is an appropriate method for quantifying threat level and integrating various threat attribute information. The performance of the model has been tested with a simulation that reflected real air threat situation and it has been verified that the proposed model was better than two conventional threat evaluation models.

궤도차량 변속기 출력 하우징의 구조건전성 평가에 대한 연구 (A Study on the Structural Integrity Assessment of the Output Housing in Transmissions of a Tracked Vehicle)

  • 정재웅;이희원;문태상;권준식
    • 한국군사과학기술학회지
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    • 제18권1호
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    • pp.8-14
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    • 2015
  • Transmission of a tracked vehicle designed for multiple functions such as steering, gear-shifting, and braking is a core component of heavy vehicle to which the power is transferred based on combined technology of various gears, bearing, and fluid machineries. Robustness and durability of transmission, however, have been issued due to a large number of driving units and sub-components inside its body. Particularly, transmission housing is important structure which supports the transmission, and is made of aluminum alloy. Thus, structural robustness against such mechanical loading or vibration must be attained. Structural reliability evaluation through FEM analysis can save time and cost of the actual tests. In this study, structural evaluation is conducted on output housing of transmission, which is core component of tracked vehicle, using the simulation program. In addition, transmission dynamo test is performed to evaluate structural robustness of the output housing against the vibration which can be produced during the transmission operation.

해안방어 무기체계 효과분석 방법론: 사례연구를 중심으로 (A Case Study on Analysis Methodology of Costal Defence Weapon System)

  • 신상욱;최봉완;오천균;조한무
    • 한국군사과학기술학회지
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    • 제22권1호
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    • pp.124-134
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    • 2019
  • As the types of North Korea's provocation are diverse and unexpectable in the costal area, ROK navy needs to develop countermeasures, such as costal defence guided rockets. Recently ROK navy developed the PKX-B which is equipped with the new 130 mm guided rocket. The most popular rockets are LOGIR for short range targets, 130 mm guided rocket for middle range targets and Spike-NLOS for long range targets. As various guided rockets are developed, it is required to develop a guided rocket analysis model and it's analysis methodology. In addition, these guided rockets can be installed on any platforms; ground vehicle, aircraft and warship. The paper proposes systematic methodology to estimate the operational effectiveness of costal defence guided rockets. A case study exploiting the ARENA simulation model is explained to demonstrate the implementation of the proposed methodology.