GPS-based indoor positioning system with multi-channel pseudolite (Haruhiko Niwa, Kenri Kodaka, Yoshihiro Sakamoto, Masaumi Otake, Seiji Kawaguchi, Kenjirou Fujii, Yuki Kanemori, Shigeki Sugano) [通常講演]
The 2008 IEEE International Conference on Robotics and Automation (ICRA2008) 2008年
pp.905-910, Pasadena, CA, 2008.5