• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2015.10a
• /
• pp.579-581
• /
• 2015

Air threat such as aircrafts or missiles were incresed rapidly after World War II, warships were relatively vulnerable to air threat. Therefore U.S. and allies developed various Tactical Data Link(TDL) to defend warships from air threat. Target information can be managed and shared with other station by real or near-real time due to TDL. TDL is base system to manage battlefield and to carry out C2(Command and Control) effectively and rapidly. In this paper, the type, current operating status and characteristic of TDL is surveyed and newest technical trend such as LINK-K is described.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2008.11a
• /
• pp.1336-1339
• /
• 2008

최근, 우리 군에서는 무선을 기반으로 하는 차세대 전술통신 체계인 전술 종합 정보 통신 체계 (TICN: Tactical Information Communication Network) 구축 사업을 진행하고 있다. 이 시스템의 백본 역할을 수행하는 TICN 전달망에서의 라우팅 알고리즘은 기존 인터넷에서 사용 중인 표준 라우팅 알고리즘과는 다른 특성이 요구된다. 즉 무선전송 링크의 특성 및 재밍 등의 영향으로 링크 상태가 불안정한 상황에서도 생존성과 안정성이 요구되는 군 전술망 환경에 적합하여야 하며, TICN 전달망의 자원 효율성도 최대화할 수 있어야 한다. 그러므로 본 논문에서는 기존의 인터넷 표준 라우팅 프로토콜들 중에서 네트워크 상태변화에 신속하게 대처할 수 있으며, 이미 널리 사용되고 있는 OSPF 프로토콜을 TICN 전달망에 적합한 라우팅 프로토콜이 되도록 수정하고자 한다. 이를 위해 라우팅 프로토콜의 대상 네트워크가 유선망에서 무선 전술 백본망으로 변경됨에 따라 튜닝될 필요가 있는 프로토콜 파라미터들을 추출하고, 시뮬레이션을 통해 추출한 파라미터들의 값들을 튜닝 하고자 한다.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.37 no.1C
• /
• pp.63-75
• /
• 2012

This paper researched the operation methods of software video teleconferencing on the tactical communication networks under 1Mbps. The tactical communication networks have limited bandwidths, frequent data losses and transmission delays due to the unstable networks. In addition, the bandwidth for video teleconferencing has to be much smaller since the Army Tactical Command Information System(ATCIS) has priority of using the bandwidth. This paper analyzed such restrictions of tactical communication networks, presented some methods to improve the quality of the software video teleconferencing on the tactical communication networks and their actual experiments as well. It is applied in the first place to re-transmit the lost packets and to reduce the image size for the data traffic. Nothing is better for the video teleconferencing than to provide the bandwidth enough for every user. However, on the tactical communication networks with the limited bandwidth, video teleconferencing can be improved by optimizing the compression rate of image data, the number of image frames, the audio codec and the usage of audio compensation data.

• Journal of Advanced Navigation Technology
• /
• v.27 no.5
• /
• pp.495-501
• /
• 2023

P-3C/K aircraft for maritime patrols that Republic of Korea Navy is using, is equipped with a variety of sensors and communication devices. Collected data from the aircraft is managed as tactical information by flight operators and stored. When the flight mission is completed, this information is transferred to tactical support center on the ground and played back or used for follow-up work through a analysis tool. During a flight mission, there are tens of thousands of detection objects within an hour in KADIZ (Korea air defense identification zone). In contrast, in TSD (tactical situation display), which displays a map when using the analysis tool, all detected objects are expressed as symbols. The increase in display symbols has a significant impact on the TSD image updating and consequently interferes with the smooth operation of operators. In this paper, we propose applying multiple threads and multiple layers to improve the performance of existing TSD. And the performance improvement is proven through the execution results.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.12 no.5
• /
• pp.482-492
• /
• 2019

The naval ship consists of a variety of classes, including patrol, frigate, destroyer and landing ship. There are various means of communication between combat ships belonging to the mobile fleet, including voice network, text message network and tactical data link. The operation at the existing mobile fleet level was conducted mainly on voice and text message, and tactical data link were used mainly to share tactical information between combat ships. This study intended to design HCI for commander like as KDDX of fleet level based on tactical data link, a means of communication between ships, to secure operational control of the mobile fleet. Recently, naval ships have been developed in the organization of various sensors, weapons and tactical data links integrated into the combat management system, and this study also designed the HCI based on the tactical data links integrated in the combat management system. The purpose of this study was to secure the operational efficiency of the tactical data link based on the combat management system in operation of the mobile fleet, and to improve the capability of the fleet commander to recognize the battlefield situation awareness.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2018.10a
• /
• pp.467-469
• /
• 2018

Tactical wireless communications often suffer from communication problems such as channel interference and communication disconnection due to the variability of the network topology and poor communication environment. Therefore, it is very important to overcome the problem of communication failure of the wireless communication network caused by the poor tactical environment and to improve the survivability. This paper describes the automatic control methodology of wireless communication equipment to identify and distinguish the situation of communication failure without user intervention and to implement more effective solution.

• Convergence Security Journal
• /
• v.6 no.4
• /
• pp.59-66
• /
• 2006

There is a tendency that next-generation tactical information network for the military has been developed from tactical environment based on commercial Internet technology to Tactical Internet(TI) of which purpose is providing various informations such as data, voice and image. On the other side, with an introduction of commercial information communication technology onto Tactical Internet had progressed rapidly on the basis of U.S. Army, threats and attack patterns against Tactical Internet have changed into various types gradually. In this paper, we will examine security factors and technologies to be considered in case of accepting Tactical Internet as a next-generation tactical information network, and discuss its countermeasures with those technologies for a basis.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.12 no.4
• /
• pp.51-56
• /
• 2012

Nowadays, For that reason, the tactical training system that were applied to recruit training center and police training, a real-life survivor game place is a drill using conventional training methods that there is no special training system at open terrain and field, there is no training accomplishment in conformity with battlefield situation portrayal. Therefore, this paper developed the tactical training evaluation system and real-time monitoring system that is compensated the defect and controlled sensing, interlock with PC as wireless a way of GUI using PCB mounted MICOM. This system evaluate drill that regulate sensor control module, tactical training system remotely according to what they should do, is installed to fit the occasion as to be reflected or transmission choosingly and is a 24V H/W drive module.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.15 no.4
• /
• pp.19-24
• /
• 2015

Security has been a major concern in software development. Security tactics are reusable building blocks providing a general solution for recurring security concerns at the architectural level. They are often used together with architectural patterns which provide a general solution for architecting software systems. However, use of security tactics in architectural patterns has been understood only conceptually without concrete understanding of how their involved elements should be structurally and behaviorally co-designed. In this paper, we present model-driven analyses of security tactics in the context of Broker architectural patterns and provide evidences of the analyses in real world case studies.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.37 no.2B
• /
• pp.120-129
• /
• 2012

Wireless mesh network (WMN) has recently emerged as a promising technology for tactical operation. If a platoon is organized with MPs, this system is suitable for tactical coverage is given for battle field where there is a shortage of wired infrastructure. However, MPs of typical WMN are generally fixed. This condition does not apply to diverse tactical scenarios. In this paper, it is considered that MPs have group mobility for flexible tactical networks. We propose cluster based multi-channel MAC scheme for mobilie WMN with single antenna condition. We have reduced the collision problems and message storming problems occur by mobility, so the reliability of WMN has been improved. Consequently, reliable communication is guaranteed by our framework in mobile WMN.