1. [1] 坂井丈泰, GPS技術入門, 東京電機大学出版局, 2003.
2. [2] 歩み出す屋内測位,日経エレクトロニクス, 2013年5月27日号,No.1109, pp. 27-41.
3. [3] J. Hightower, C. Vakili, G. Borriello, and R. Want, Design andCalibration of the SpotON Ad-Hoc Location Sensing System,unpublished, 2001.
4. [4] H. Koyuncu, A survey of indoor positioning and object locating systems, Journal of Computer Science and Network, vol. 10, no. 5, pp. 121-128, 2010.
5. [5] F. Ijaz, C.Lee, Indoor positioning: A review of indoor ultrasonic positioning systems, Proc. ICACT, pp.1146-1150, 2013.