• Title/Summary/Keyword: Air Defence

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

  • Kim, Younghun
    • Journal of the Korea Institute of Military Science and Technology
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    • v.18 no.6
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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.

Development of the Data Communication based Future Air Base Defence Operation Model (데이터통신 기반 차세대 기지방어작전 모델 개발)

  • Pyo, Sang-Ho;Kim, Ki-Hyung;Lee, Tae-Gong
    • Journal of Information Technology and Architecture
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    • v.11 no.2
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    • pp.157-173
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    • 2014
  • As Air Base Defence, Anti-Aircraft Defence and Nuclear-Biological-Chemical Protection model considered as ground operation models in Republic of Korea Air Force are designed as the voice-centered system between participant nodes, there is a problem communicating accurately. In recent years, the military is developing a command and control capability using data communication technology to solve the problem. Therefore, this paper proposes new model to maximize efficiency of performance improvement through the Data Communication-based Future Air Base Defence Model. We refer to a research paper that is related existing and developed new model. and then we really experimented under WiBro Network that is constructed to Air Base for maintenance control. Based on the analysis and the test result of new Air Base Defence Model, we have concluded that the performance improvement effect is reached.

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

  • Choi, Byeong Ju;Kim, Ji Eun;Kim, Jin Soo;Kim, Chang Ouk
    • Journal of the Korea Institute of Military Science and Technology
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    • v.19 no.1
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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.

Guidance law for a missile after thrust cutoff

  • Baba, Yoriaki;Kishitani, Harunobu;Takano, Hiroyuki
    • 제어로봇시스템학회:학술대회논문집
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    • 1994.10a
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    • pp.647-652
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    • 1994
  • In the previous paper, we presented a new guidance law for a missile during boost phase. Thus, this paper deals with the guidance law for a missile after the thrust cutoff against an accelerating and turning target. It is essentially based on the concept of proportional navigation. Some simulation studies were performed using a three dimensional mathematical model of an air-to-air missile and the effectiveness of the guidance law presented was shown.

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The Development Option for Korea Air Defense Identification Zone(KADIZ) (한국방공식별구역(KADIZ) 발전방안)

  • Kim, Dongsoo;Hong, Sungpyo;Chong, Mangseok
    • Journal of Aerospace System Engineering
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    • v.10 no.1
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    • pp.127-132
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    • 2016
  • Recently, China & Japan have expanded their responding ADIZ(Air Defence Identification Zone) to implement each Government's maritime policy and to project their Air Power in preparation for maritime provocation & contingency, especially over the piled area where East Asia countries have claimed to have maritime jurisdiction one another. So this is to guide the Development Option for Korea Air Defence Identification Zone to cope with the maritime intentions of the neighboring countries, considering the international law for ADIZ, the maritime policy and the maritime sovereign & jurisdiction area of the Republic of Korea, etc.

Distributed Air Defense Simulation Model and its Applications (방공교전모델(DADSim) 개발 및 활용사례)

  • 최상영;김의환
    • Journal of the military operations research society of Korea
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    • v.27 no.2
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    • pp.134-148
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    • 2001
  • In this paper, air-defense simulation model, called "DADSim", will be introduced. DADSim(Distributed Air Defense Simulation Model) was developed by Modeling&Simulation Lab of K.N.D.U.(Korea National Defence Univ) Weapon Systems Department. This model is an analysis-purpose model in the engagement-level. DADSim can simulate not only the global air-defense or Korean Peninsula but also the local air-defense or a battle field. DADSim uses the DTED(digital terrain elevation data) LeveII it for the representation of peninsula terrain characteristics. The weapon systems cooperated in the model are low/medium-range missile systems such as HAWK, NIKE, SAM. DADSim was designed in the way of object-oriented development method, implemented by C++ language. The simulation view is an event-sequenced object-orientation. For the convenience of input, output analysis, GUI(Graphic User Interface) of menu, window, dialog box, etc. are provided to the user, For the execution of DADSim, Silicon Graphic IRIX 6.3 or high version is required. DADSim can be used for the effectiveness analysis of­defence systems. Some illustrative examples will be shown in this paper.

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SE Model-Based Program Development for Aircraft Full Life-Cycle Weight & Balance Control (SE기반의 전순기 항공기 중량.평형관리 Program 개발)

  • Kim, Jeong Hun;Park, Cha Hwan;Jeong, Yeong Hwa;Kim, Mun Giu;Kang, Min Sung
    • Journal of the Korean Society of Systems Engineering
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    • v.3 no.2
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    • pp.25-32
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    • 2007
  • There has been no systematic accumulation in the aircraft weight data even though those are crucial in the full life-cycle weight and balance program of aircraft. Companies, government agencies, and the Korea Air Force have been controling the data separately. The lack of communication between these institutes prevented the mutual use of the data. This study deals with a SE model-based weight and balance program development process for the full life-cycle weight and balance control of aircraft which enabled the efficient and mutual use of the weight data from the various institutes.

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A Study on the Nondestructive Test Method for Adhesively Bonded Joint in Motor Case Assembly (연소관 조립체의 접착 체결부에 대한 비파괴 시험 방법 연구)

  • Hwang, Tae-Kyung;Lee, Sang-Ho;Kim, Dong-Ryun;Moon, Soon-Il
    • Journal of the Korean Society for Nondestructive Testing
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    • v.26 no.5
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    • pp.343-352
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    • 2006
  • In the present paper, the nondestructive test method was suggest to establish the bonding status of a motor case assembly composed of a steel motor case, adiabatic rubber layer and an ablative composite tube with strain data, AE(acoustic emission) signals and UT(ultrasonic test) data. And, finite element analysis was conducted to verify quantitatively the bonding status of motor case assembly under inner pressure loading. The bonding status could be judged whether the bonding status is perfect or contact condition by the data correlation study with AE signals and strain data measured from air pressure test. And, to classify the bonding status of motor case and rubber layer among bonding layers, UT method was also applied. From this study, the bonding status could be classified and detected into fourth types for all bonding layers as follows: (1) initial un-bonding, (2) perfect do-bonding during an air pressure test, (3) partially de-bonding during an air pressure test, and (4) perfect bonding.

Effective Route Scheduling for Military Cargo-Plane Operation (군 수송기 운영 효율성 제고를 위한 최적경로 연구)

  • Kim, Seung-Ki;Lee, Moon-Gul;Lee, Hyun-Soo
    • Korean Management Science Review
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    • v.33 no.1
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    • pp.89-99
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    • 2016
  • A scheduled airlift is the most critical part of the air transportation operations in ROK Air Force. The military cargo-plane routing problem is a PDPLS (pickup and delivery problem in which load splits and node revisits are allowed). The cargo which is transported by a military cargo-plane is measured in pallet. The efficiency of pallet needs to be considered with respect to its volume and weight. There are some guidelines about orders of priorities and regulations in the military air transportation. However, there are no methodologies which can raise the efficiency of flight scheduling using Operations Research (OR) theories. This research proposes the effective computing methodology and the related heuristic algorithms that can maximize the effectiveness of the path routing model.