Affiliation: | a Department of Control & Instrumentation Engineering, Korea University,1-5ka, Anam-Dong Sungbuk-ku, Seoul 136-072, South Koreab Department of Control & Instrumentation Engineering, Korea University, Seoul 136-072, South Koreac Graduate Student, Currently Research Engineer in Bosch Korea, 298 Bojungri, Kusungeup, Yongin, Kyungido 449-913, South Korea |