• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.50 no.1
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• pp.47-57
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• 2022

UAVs have been deployed various missions such as deception, reconnaissance and attack since they have been applied in battlefield and achieved missions successfully instead of man. In the past, it is impossible for UAVs to conduct autonomous missions or cooperative mission between manned aircraft due to the limitation of the technology. However, theses missions are possible owing to the advance in communication and AI Technology. In this research, we identified the possible cooperative missions between manned and unmanned team based on air-to-air mission. We studied cooperative manned and unmanned tactics about fighter sweep mission which is the core and basic operation among various air-to-air missions. We also developed cooperative tactics of manned and unmanned team by classifying nonstealth and stealth confrontational tactics. Hereafter, we verified the validity of the suggested tactics using computer simulations.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.47 no.9
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• pp.678-685
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• 2019

Due to the changes in future war environment and the technological development of the aviation weapon system, it is required to carry out on the analysis of the Manned-Unmanned aerial vehicles Teaming(MUM-T). Conventional manned-unmanned aerial vehicles operate according to the air strategy missions and vehicles' performance. In this paper, we analyze conventional aerial vehicle's mission to derive various kinds of missions of MUM-T after analyzing the unmanned aircraft systems roadmap issued by US DoD and the air strategy of US Air Force. Next, we identify the basic operations of the vehicles to carry out the missions, select the MUM-T based Suppression of Enemy Air Defense missions(SEAD), and analyze the procedure for performing the missions step by step. In this paper, we propose a procedure of the mission in the context of physical space and timeline for the realization of the concept of MUM-T.

• Journal of Aerospace System Engineering
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• v.18 no.2
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• pp.1-11
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• 2024

This paper applies a relative impact angle control guidance law to a communication-based multi-missile network system with uncertainties and disturbances. The multi-missile network system is represented as a transitive reduction directed acyclic graph. Furthermore, this paper introduces both centralized and decentralized guidance laws based on the graph's structure. The relationship between these guidance laws is analyzed by comparing them based on the communication structure and the presence of system noise. To analyze the effects of decentralized optimal cooperative guidance law, this paper assumes uncertainty in missile dynamics and predicted impact point information for the relative impact angle control mission. Monte Carlo simulations are conducted for various mission environments to analyze the impact of communication and its structure on the system.

• Journal of the Korea Institute of Military Science and Technology
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• v.25 no.4
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• pp.401-411
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• 2022

As the role of high-value air assets(e.g., AWACS, JSTARS, Rivet Joint, E-2) becomes more critical in modern warfare, the air escort for these assets blocking attacks from any potential enemy fighter also becomes vital. Without the escort, the operations of the assets become restricted. However, such an escort is not always possible due to the limited flight time of the escort fighters. In this paper, we introduce an escort tactics for high-value air assets performed by the manned-unmanned teaming composed of a transport aircraft and UAVs(unmanned aerial vehicles). In this tactics, the transport aircraft plays the role of an aircraft carrier, which carries, launches, and retrieves the UAVs. The missions of UAVs in this tactics are to detect and engage enemy fighters. We also introduce the simulation result of this tactics to identify the UAVs' required capabilities and optimal maneuvering.

• Journal of Aerospace System Engineering
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• v.17 no.6
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• pp.133-143
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• 2023

This paper describes the system integration laboratory's requirement analysis, implementation, and verification for multiple-scenario unmanned aerial vehicle operation and control technology using a manned rotorcraft for Manned-Unmanned Teaming. System integration laboratory consists of manned rotorcraft flight simulation, unmanned aerial vehicle flight and mission equipment simulation, ground control system simulation for unmanned aerial vehicle control and change in the control authority between the ground control system and manned rotorcraft, and operation and control system for mission plan's writing and transmission. Each implemented simulation verified the requirements through software and hardware integration test.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.3
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• pp.99-104
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• 2014

In this paper, the authors propose a multi-transmission mechanism of heterogeneous network environment which is applicable to the SMART screen services over wire and wireless convergence network. This paper presents study results including a SMART screen handover algorithm among multiple collaborative devices under wire and wireless convergence and heterogeneous network environment, and a service operation and management system and a NAS system providing SMART services of AV streaming and contents files. These validate implementation feasibility of a call processing engine for seamless SMART screen collaborative services, AV streaming services and SMART screen collaborative services supporting mobility management and multiple users/multiple streams.

• Proceedings of the Korea Multimedia Society Conference
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• 2012.05a
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• pp.172-176
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• 2012

섬유산업은 다품종 소량생산 및 납기단축을 요구함으로써 기업간 실시간 정보협업 (재고유무, 공정진행 등)이 필수 요소로 대두되고 있으며, 이를 해결하기 위하여 섬유산업 특성을 반영한 효율적 정보 협업시스템 개발 및 보급을 목적으로 SCM 정보시스템 구축을 위한 비즈니스 프로세스를 모델링하였다. 또한 기업에서 현재 사용 중인 ERP 외 신규 SCM 구축에 따른 기존 사용자 거부반응을 최소화하기 위하여 기존 사용 중인 ERP시스템에 부착하여 정보협업이 가능한 표준 게이트웨이 모듈과 자체 시스템이 없는 중소 영세기업을 위한 Saas기반SCM으로 분류하여 비즈니스 프로세스를 설계 및 프로토타입을 구현하였으며, 기업 데이터 연계를 위한 거래문서정보 표준화 도출을 통하여 수평적 정보협업 업무통합 비즈니스 프로세스를 설계하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.1426-1429
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• 2011

최근 유무선 통신기술의 발달에 힘입어 정보소통의 주요 방식이 기존의 이메일에서 SNS로 변화되어 가고 있다. 이와함께 신속한 정보전달 및 원할한 협업이 기업의 경쟁력을 향상시키는 중요 요소로 인식됨에 따라, 영상회의 솔루션이 기업의 가치를 상승시키는 서비스로 주목받고 있다. 그러나 기존의 SNS의 경우, 일상적인 정보의 공유에 초점이 맞추어져 있어 전문지식의 공유 및 협업이 요구되는 전문가형 SNS로 활용하기에는 다소 미흡한점이 있다. 또한 영상회의의 경우, 특정 하드웨어 또는 소프트웨어를 설치하여야만 영상회의 솔루션을 활용할 수 있다는 문제점이 존재한다. 따라서 전문가를 위한 SNS개발을 위해서 본 연구에서는 SNS플랫폼 기반의 영상세미나 시스템을 설계한다. 설계하는 시스템은 Java Media Framework 및 소켓통신을 활용하여 영상세미나 시스템을 구축하고 아울러 Java Web Start의 형태로 SNS플랫폼 상에서 동작할 수 있도록 설계되었다. 이를통해 전문가를 위한 효율적인 정보공유 및 원할한 협업을 지원하며, SNS 플랫폼 기반으로 동작하기 때문에 기존 영상시스템을 활용하는데 발생하는 문제점을 해결할 수 있다.

• The Journal of the Korea Contents Association
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• v.20 no.5
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• pp.79-89
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• 2020

The current study explored if users' self-relevance of the comparison domain with creative AI robot in music composition affected their envy toward the robot, cognitive assessment toward the music and intention toward working with robot in future. This study conducted a 2 (degree of self-relevance: high(college students majoring in music) vs. low(those not majoring in music) × 2 (working type: robot-only vs. robot-human collaboration) between-subjects factorial design experiment. The findings revealed that those majoring in music did not feel envious of the robot as much as those not majoring in music. However, compared to those not majoring in music, those majoring in music evaluated the robot's creativity lower, had more negative attitude toward the music, showed less intention to use the music and work with the robots in future. No interaction between the degree of self-relevance and the working type was found.

• The Journal of Korean Association of Computer Education
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• v.16 no.2
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• pp.79-90
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• 2013

Communication errors have severe consequences clinical quality and disputes in medical organizations. Thus, clinical communication has become a major practice recently, since clinical and managerial effectiveness can also be enhanced by improving the quality of the physician, medical staff, and laboratories interactions. Both medium and large-sized hospitals are increasingly adopting the philosophy to shorten clinical service time while enhancing higher medical service quality and lower healthcare service costs. From this motivation, this paper studies on the clinical collaborative communication concept and investigates approaches to the philosophy for implementation. The system has been theorized to improve communication and enhancing medical outcome qualities. In addition, to validate the system, the author analyzes the efficiency and effectiveness in S hospital, using statistical survey works.