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Synchronization of a Complex Dynamical Network with nonidentical Node and Free Coupling Strength
Han-O YUN(윤한오) 대한전자공학회 2013 전자공학회논문지 Vol.50 No.8
본 논문은 동일하지 않는 노드들을 갖는 복잡동적 네트워크의 동기화문제를 고려한다. 이 문제에서 타켓 노드는 별도의 독립노드 대신에 네트워크내의 한 노드를 택하였다. 더욱이 본 논문의 동기화기법에서는 기존에 존재하는 연결행렬의 정보나 부가적인 조건을 필요하지 않는 장점이 있다. 리아프노프 안정성기법에 의거하여 타켓 노드와 다른 노드들 사이의 동기화를 위한 새로운 적응제어기를 위한 조건을 유도한다. 마지막으로 제안된 기법의 효율성을 보이기 위하여 수치적인 예제를 제시한다. This paper considers synchronization problem of a complex dynamical network with nonidentical nodes. For the problem, the target node is chosen as one of nodes in the complex network instead of an isolate node. Moreover, our synchronization scheme does not need additional conditions and information of coupling matrix comparing with existing works. Based on Lyapunov stability theory, a design criterion for a novel adaptive feedback controller for the synchronization between the target node and another nodes of the complex network is proposed. Finally, the proposed method is applied to a numerical example in orther to show the effectiveness of our results.
H₂ 준최적제어기의 변수화를 이용한 혼합된 H₂H<SUB>∞</SUB> 최적제어기 설계
류동기(Dong Ki Ryu),방경호(Kyeong Ho Bang),윤한오(Han O Yun),박홍배(Hong Bae Park) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
In this paper, we proposed a mixed H₂H∞ optimal controller design method using the parameterization of H₂ suboptimal controller. The method is based on the minimization of H₂ performance measure with an H∞ -norm constraint. We also derived the necessary and sufficient conditions for existence of solution from the decoupled Riccati equations. And the designed controller has state-space representation.
MPEG-V 표준 기반의 실감효과 메타데이터 재현검증 플랫폼
하금숙(Keum-Sook Ha),추현민(Hyun-Min Choo),윤한오(Han-O Yun) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6
In this paper, we introduce a sensory effect metadata (SEM) reappearance verification platform based on MPEG-V international standard. This system can verify the XML format of the SEM based on MPEG-V and the reappearance synchronization between the target content and the SEM. We describe the basic concept and simulation test of this platform, and grope for MPEG-V based future works.
하금숙(Keum-Sook Ha),신상호(Sang-Ho Shin),윤한오(Han-O Yun) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.11
In this paper, we introduce a VR platform for reality experience using sensory effect metadata (SEM) based on MPEG-V international standard. This platform consist of the digital contents authoring technique, MPEG-V international standard and the reappearance synchronization between the target content and the SEM. The cases of the VR platform for realistic experience are interactive realistic media experience, curved riding surface experience, 360 degree circular vision experience, pseudo hologram experience and teleporting realistic experience platform etc.
MPEG-V 국제 표준 테스트베드 환경에서의 실감미디어 서비스 플랫폼
신상호(Sang-Ho Shin),최형욱(Hyoung-Wook Choi),하금숙(Keum-Sook Ha),윤한오(Han-O Yun) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.11
In this paper, we introduce a realistic media service platform in MPEG-V standard test-bed environments. The RMSP is composed of two groups: OpenLab. and OpenAPI. The OpenLab. is test-bed of realistic media production life cycle such as content production, authoring the sensory effect metadata, verification of synchronization between content and sensory effect metadata and so on. The OpenAPI is SDK for realistic media production such as realistic media reappearance library and standard controller. We describe the concept of OpenLab and OpenAPI.