1. Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu-shi, Shizuoka 432-8561, Japan
2. Department of Electrical Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok, West Java 16424, Indonesia
3. Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu-shi, Shizuoka 432-8561, Japan