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MC6800 $\mu$-Computer System에 대한 2716 PROM Programmer의 설계에 관하여
류준,Lyou, Joon 대한전자공학회 1981 전자공학회지 Vol.18 No.6
2716 PROM programmer for the latest 16 bit $\mu$-computer Mc68000 system, which can program the contents of object code to 2716 PROM or EPROM of 2K byte capability in stand alone mode, is designed and implemented.
Transfer alignment considering measurement time delay and ship body flexure
류준,임유철 대한기계학회 2009 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.23 No.1
This paper deals with the transfer alignment problem of strap-down inertial navigation systems (SDINS), using electro- magnetic (EM) log velocity information and gyrocompass attitude information of the ship. Major error sources for velocity and attitude matching are lever-arm effect, measurement time-delay, and ship-body flexure (flexibility). To reduce these alignment errors, an error compensation method based on delay state augmentation and DCM (direction cosine matrix) partial matching is devised. A linearized error model for a velocity and attitude matching transfer alignment system is devised by first linearizing the nonlinear measurement equation with respect to its time delay, and augmenting the delay state into conventional linear state equations. DCM partial matching is then properly combined with velocity matching to reduce the effects of a ship’s Y-axis flexure. The simulation results show that this method decreases azimuth alignment errors considerably.
시스템파라미터가 불확실한 대규모 선형 이산시간 시스템의 비집중 안정화에 관한 연구
류준,윤명중,정명진,변증남,Lyou, Joon,Yoon, Myung-Joong,Chung, Myung-Jin,Bien, Zeungnam 대한전기학회 1985 전기학회논문지 Vol.34 No.3
This paper presents a decentralized adaptive scheme to stabilize a class of large-scale discrete-time linear systems subject to system parameter uncertainties. The scheme combines an adaptive nonlinear feedback control for compensating some effects by unknown system parameters and the exact model-based linear feedback control for overriding the unfavorable effects by interconnections. A condition of stability is derived, under which the overall adaptive system is assured to be globally stable. Also, a numerical example is provided to illustrate the feasibility of the scheme.
시스템 파라미터가 불확실한 대규모 선형련 매시간 시스템의 비집중 안정화
류준,변증남,윤명중,Lyou, Joon,Bien, Zeungnam,Youn, Myung-Joong 대한전자공학회 1985 전자공학회지 Vol.22 No.3
본 논문에서는 시스템 파라미터가 불확실한 일련의 연속시간 대규모 선청 시스템을 안정화하는 문제가 다루어졌다. 제안된 비집중 적응 제어기는 새로운 적웅궤환 제어와 기존의 선형궤환 제어를 결합한 형태로서, 전체 케루프 시스템의 안정을 보장하기 위한 충분조건이 유도되었다. 또, 제안된 방식의 유용성을 보이기 위하여 컴퓨터 모사를 통한 수치예가 제시 되었다. This paper considers the problem of stabilizing a class of continuous-time large scale linear systems when the system parameters are uncertain. The proposed local adaptive controls are a combination of a new adaptive feedback control and the conventional linear feedback control. A condition of stability is derived , under which the overall closed-loop system is assured to be globally stable. Also, a numerical example is illustrated via computer simulation.
Decentralized Adaptive Controller Design for Manipulators
류준,황석용,Lyou, Joon,Hwang, Suk-Young The Institute of Electronics and Information Engin 1992 전자공학회논문지-B Vol.b29 No.11
This paper presents a decentralized adaptive controller design for a robot manipulator to track the given desired trajectory in the joint space. The controller is of distributed structure and does not require the complex manipulator dynamic model, thereby it is computationally very efficient. Each joint is independently controlled by a PID feedback part and a velocity-acceleration feedforward part. Simulation results for a two-link direct drive manipulator conform that the proposed decentralized scheme is feasible.
Decentralized Adaptive Controller Design for a Class of Interconnected Continuous Systems
류준,김병연,Lyou, Joon,Kim, Byung-Yeun The Institute of Electronics and Information Engin 1992 전자공학회논문지-B Vol.b29 No.10
This paper presents a decentralized model reference adaptive control scheme for an interconnected linear system composed of a number of single-input single-output subsystems in which outgoing interactions pass through the measurement channel and are subjected to bounded external disturbances. The scheme can treat the unknown strength of interactions as well as uncertainties in subsystem dynamics, and allows for the case when the relative degree of each decoulped subsystem does not exceed two.