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네트워크중심전(NCW)을 위한 UMPC 기반 데이터 링크 시스템 설계 및 구축
심동섭,김기형,Sim, Dong-Sub,Kim, Ki-Hyung 한국군사과학기술학회 2009 한국군사과학기술학회지 Vol.12 No.2
All of the military aircrafts in Korea Air Force are administered and operated together in the same system regardless of whether they are equipped with the data communication capability or not. The absence of the data communication capability in some of the aircrafts might increase whole kill chain hour at the point of the Network Centric Warfare achievement. Network synergy effects cannot also be desired if the section which is not connected to the network influences to the whole tactical network. Equipping aircrafts with the data communication capability could be done by upgrading the aircrafts, but resulting in high costs and long updating time. This paper is a research about the design and implementation of the UMPC based Data Link System to aircrafts that do not have the data communication capability. The proposed system grafts the UHF-based wireless modem technology and the aircraft flight mission support software onto the off-the-shelf UMPC and GPS system. The employed UHF radio equipment allows communicating tactic data with another aircrafts on the air, the ground control point, and even the Tactical Air Control Party(TACP) control vehicle that achieve missions with aircrafts. It thereby increases such capabilities as navigation aid, situation awareness, quick target identification and attack. We also applied Closed Air Support(CAS) scenarios, which is very close to the real environment, to the experiments of the proposed system. The experimental results show that the proposed system could support the data communication capability effectively and the flight mission at low costs of money and time.
심동섭,이세영,양우현,Sim Dong-sub,Lee Sae-young,Yang Woo-hyun 한국주거학회 2005 한국주거학회 논문집 Vol.16 No.3
The objectives of this article are to grasp the characteristics of the apartment buildings with commercial facilities through various case studies and to present alternative measures in planning method to the issue of division of space function. To present the alternative planning method on apartment buildings with commercial facilities in urban housing blocks, 34 cases completed in 1990's were chosen in Seoul area. Substantial methods such as field research, close observation and interviews were carried out to analyze on these subjects. The analysis were focused on the sizes and features of apartment buildings and its relationships to other components. Other components can be roughly divided into four sectors which are environments, roads, arrangements of the main building and public facilities and commercial facilities inside the resident blocks.
기존 전술 무전기를 이용한 전술 데이터 통신 성능 실험
심동섭,강경성,김기형,Sim, Dong-Sub,Kang, Kyeong-Sung,Kim, Ki-Hyung 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.2
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.
심동섭,이영란,김기형,Sim, Dong-Sub,Lee, Young-Ran,Kim, Ki-Hyung 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.5
ADAS is the air defense control system performing air surveillance and identification of ROK and near air. This system is self-developed by Air Force, currently operated successfully as the alternative system of MCRC. ADAS processes converting and combining transferred the real time radar data detected by radars. additionally, it displays significant radar data as producing in tracks. Then, it uses the message queue for IPC(Inter Process Communication). the various tactical data processed in the server is ultimately send to the network management process through the message queue for transmitting to the weapon director console. the weapon director receives this transmitted tactical data through the console to execute air defense operations. However, there is a problem that data packet is delayed or lost since the weapon Director does not receive as the amount of tactical data from the server overflowed with air tracks and missions increased. This paper improved the algorism to display and transmit the various tactical data processed from ADAS server to numbers of the weapon director console in the real time without any delay or lost. Improved the algorism, established at exercise, the development server in the real operation network and the weapon director console, is proved by comparing the number of sending tactical data packets in the server and receiving packets in the weapon director.