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정주수,김성락,이용국,송준엽,Jeong, Ju-Su,Kim, Seong-Rak,Lee, Yong-Guk,Song, Jun-Yeop 한국시스템엔지니어링협회 2003 시스템엔지니어링워크숍 Vol.1 No.-
A robot system in most industries has a complicated structure, which includes electric and electronic components, and mechanical parts. For this reason, building a robot system also has a very complicated design and maintenance processes. Especially to predict or assess the system's maintainability and safety is important for both designer and operator before it's production or installation of the system. This paper presents an application methodology of FMECA focused on safety in design of a robot system with point of view of reliability engineering.
김민호,정주수,변건식 東亞大學校 附設 情報通信硏究所 1996 情報通信硏究所論文誌 Vol.4 No.1
In this paper we study trellis-coded modulation(TCM), used for data communication and sateliite communication with the purpose of gaining noise immunity over uncode transmission without altering the data rate. We design encoder followed by TCM design rule which increase the Ungerboeck's minimum intra-set distance, design the encoder of Calderbank and Mazo's analytical method followed by encode design rule with Turgeon's minimal complexity, converting to the Ungerboeck's encoder, and estimate the performance of two systems. Also, we estimate the performance with biterror rate of uncoded QPSK, coded TCM-8PSK and minimal complexity TCM-8PSK.