1. a Korea Aerospace Research Institute , 169-84 Gwahangno, Yuseong-gu, Daejeon, 305-806, Republic of Korea
2. b Semiconductor R and D Center, Samsung Electronics, San #16 Banwol-dong , Hwasung-city, Gyeonggi-do, 445-701, Republic of Korea
3. c School of Mechanical , Aerospace and Systems Engineering, Division of Aerospace Engineering , KAIST, 335 Gwahangno, Yuseong-gu, Daejeon, 305-701, Republic of Korea
4. d The 7th R and D Institute 2, Agency for Defense Development , Yuseong PO Box 35, Daejeon, 305-600, Republic of Korea