• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.29 no.6
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• pp.415-423
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• 2018

We herein investigate the E1 pulse for evaluating the conducted performance of transmission lines connected to the electromagnetic pulse protection facilities against a conducted high-altitude electromagnetic pulse threat exposed to an external electromagnetic environment. The existing E1 pulse generator uses the Marx generator high-voltage step-up method; however, in this research, we used the Tesla transformer method to easily change the broadband output voltage(30 to 350 kV). We also analyzed the controller, power supply, high-voltage booster, and pulse-shaping device. The E1 pulse performance using the Tesla transformer was predicted through simulations and validated by measurements.

• Journal of the Korea Institute of Military Science and Technology
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• v.13 no.2
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• pp.243-251
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• 2010

The military has been putting great efforts into applying data communication on existing voice communication systems being used in NCW(Network Centric Warfare). Data communication will be an effective choice in one of many effort to yield a minimum kill chain, comparing to legacy voice communications, when tactical units conduct their missions. However, the required budget will be enormous, in case of the replacement of a lot of legacy communication systems with new one. As a cost-effective alternative, the tactical data communication systems using the conventional radio systems instead of the development of new radio systems has been proposed. It is mandatory, though, to ensure QoS while maintaining data communication by making use of legacy radio systems already in use. This paper focuses on the performance issues experimented and analyzed for tactical data communication through the legacy radio systems as the first step towards guaranteed QoS. We have conducted various experiments such as the transmission error rate on certain tactical messages, performance evaluation of redundant transfers, the relationship between the transmission frame size and rate of error, the identification of error points in the transmission frame, and techniques to reduce the errors in both hopping and non-hopping modes. As a result of the performance experiments, The adaptive communication module which decides the redundant transmission or the Forward Error Correction(FEC) technique by analyzing channel status and current transmission status(hopping/non-hopping) of the legacy radio should be designed. the FEC technique in non-hopping, and the redundant transmission technique in hopping mode was recommended from the result of experiment with the frame size is 20bytes in non-hopping and 10Bytes frame size in hopping mode.

• Journal of the Korea Institute of Military Science and Technology
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• v.17 no.4
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• pp.395-403
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• 2014

Recent technological advancement has a profound effect on the ways that the war is being conducted and fought. The advanced communications, information, computing and sensor technologies enable the combat units to be integrated in the battlefield management network. By exchanging and sharing real-time battlefield information that is critical for the successful outcome of military engagement, the legacy forces are becoming much more effective and lethal than ever before, The bigger picture of such phenomena can be summarized as the concept of Network Centric Warfare(NCW). The main purpose of this study is to compare the outcome of regional combat engagement between the legacy forces and the future combat systems(FCS). The FCS capitalizes on the advanced technologies within the frame of NCW. This study uses the modeling and simulation methodology to assess the effectiveness of two different combat forces. The simulation results show that the FCS is more effective, hence vindicating the superiority of technologically advanced combat units.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.100-102
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• 2013

군에서는 ICT기술 발전에 따른 NCW 구현을 위해 국방통합정보관리소 사업내 클라우드 시스템 구축을 추진 중에 있다. 이에 따라 향후 군에서 클라우드 환경을 활용하는 방안 연구가 필요하다. 본 논문에서는 이러한 클라우드 환경을 군에서 활용하기 위해 다음과 같은 시스템을 제안하고자 한다. 먼저 아군이 수집하는 방대한 양의 적 정보들이 클라우드상에 저장되면 이러한 정보들과 기존의 적 정보들을 맵리듀스를 사용해 비교함으로서 향후 적 상황 변화를 가늠케 하여 군의 지휘통제 및 상황대처 능력을 향상시킬 수 있도록 추구 하였다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37B no.11
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• pp.1033-1040
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• 2012

Recently, several researches are focused on the frequency sharing and the liberalization of frequency use for utilizing the limited frequency resources efficiently. In military, as Network Centric Warfare(NCW), which requires significant mutual operability of battle elements and real-time operation speed, has come to the fore front as an important aspect of modern warfare, the methods to manage limited frequency resources in wireless communications environment efficiently has been studied and utilized. In this paper, we propose a Spectrum COP(Common Operation Picture) design suitable for the battlefields of air force. To construct the Spectrum COP of Air Force, we analyze the requirements and design the frequency management system by using EA(Enterprise Architecture) Framework. The simulation results of the proposed design proved the effectiveness by using EADSIM(Extended Air Defense Simulation) of Air Force.

• Journal of the Korea Institute of Military Science and Technology
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• v.21 no.4
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• pp.497-507
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• 2018

Tactical networks are evolving into an All-IP based network for network centric warfare(NCW). Owing to the flexibility of IP based network, various military data applications including real-time and multi-media services are being integrated in tactical networks. Because each application has diverse Quality-of-service(QoS) requirements, it is crucial to develop a QoS provisioning method for guaranteeing QoS requirements efficiently. Conventionally, differentiated services(DiffServ) have been used to provide a different level of QoS for traffic flows. However, DiffServ is not designed to guarantee a specific requirement of QoS such as delay, loss, and bandwidth. Therefore, it is not suitable for military applications with a tight bound of QoS requirements. In this paper, we propose a multi-layer network virtualization scheme that allocates traffic flows having different QoS requirements to multiple virtual networks, which are constructed to support different QoS policies such as virtual network functions(VNFs), routing, queueing/active queue management(AQM), and physical layer policy. The experiment results indicate that the proposed scheme achieves lower delays and losses through multiple virtual networks having differentiated QoS policies in comparison with conventional networks.

• Proceedings of the Korean Society of Computer Information Conference
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• 2010.07a
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• pp.349-352
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• 2010

인터넷의 등장은 세계를 초단위 정보 소통 영역으로 묶어 정보가 사회를 주도하는 형태로 발전시켰듯이, 미래 전쟁 양상도 정보가 전쟁의 승패를 결정하는 네트워크중심전(NCW)으로 발전되고 있으며, NCW의 핵심은 무기체계간 상호운용성이다. 무기체계간 상호운용성을 확보하기 위해서는 표준화된 정보를 활용해서 연동하는 중요하며, 우리 군은 무기체계간 연동을 위해 연동메시지인 KMTF를 활용하고 있다. 그러나 현 KMTF 표준은 메시지구조(message frame)만을 제시하고 세부적인 메시지는 정의하지 않아 각 체계 개발자가 나름대로 메시지를 정의함으로써 중복된 메시지를 각 체계별로 관리하고 있고, 동일한 메시지를 다른 방식으로 적용하는 부작용이 발생할 수 있으며, 체계간 연동을 위해 별도의 변환기를 개발해야 하는 문제점이 발생하고 있다. 이를 위해 본 논문에서는 첫째, 미군 메시지포맷인 USMTF를 벤치마킹하여 무기체계에 공통 적용이 가능한 공통메시지 설계방안을 제시하며, 둘째, 메시지 생명주기 관리 및 메시지 추가등록 절차 관리를 위한 KMTF 표준 관리 절차를 제시하고, 셋째, 개정된 메시지 규격에 맞는 KMTF 관리도구 개발의 방향을 제시한다.

• Convergence Security Journal
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• v.11 no.6
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• pp.59-66
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• 2011

The representative concept of the future war is NCW. The main point of NCW is that it is connected by networ ks and gathers the battlefield status in real time, managing and controlling it. This is most needed in the navy. Operations of the navy are carried out in wide areas, individually or together. During this process, sharing information between each warship should be essential. Furthermore in the case of the American navy, they see the entire world as the operation area so it is a representative example of NCW. The C4I system of the Korean army is separated a ccording to the difference of each army's tactics and weapon system, being developed and managed differently. The refore there is a problem of interoperability lacking in each system. This paper analyzes the developed C4I system of the American navy to analyze the problems of C4I system of the Korean army, and propose the future direction of its development.

• Journal of the Korea Institute of Military Science and Technology
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• v.11 no.6
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• pp.14-20
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• 2008

A battle management system should be introduced to improve mission success capabilities and accommodate integrated combat capabilities through increasing SA(Situation Awareness), or spatiotemporal synchronization of military operation in battle field environment. Conventional Korean Main Battle Tanks(Korean MBTs), which have been operated without digital network, were developed for 1980s. Korean new MBTs, which are mounted the battle management system, will be fielded soon. Therefore, old Korean MBT is needed to improve performances for co-operation with new one. This paper is reviewed each improved MBTs of world countries and domestic maintenance facilities. And this study suggests some processing methods which might be applicable to improve information network performance of old Korean MBTs.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.285-286
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• 2019

본 논문에서는 전투무선망에서 효과적인 긴급 메시지 전송 방안에 대한 방안을 제시한다. NCW 환경에서 대대급 이하 전투부대들은 전투무전기와 전술단말기를 활용하여 아군, 적군 위치와 속성정보, 활동 정보 등을 상호간 공유하여 통합적이고 효율적인 전투를 수행해야 하지만, 낮은 대역폭과 낮은 전송속도를 사용할 수밖에 없는 전투무선망을 활용하고 있으므로, 각 노드별 메시지 전송 전송성공률을 높이기 위해 전투무선망의 특성을 반영해야 한다. 이에 본 논문에서는 전투무선망에서의 긴급 메시지(적 발견 보고, 화생방 보고 등) 전송 시 부대 운용구조를 활용하여 모든 노드에 데이터가 효과적으로 전달될 수 있는 방안을 제시한다.