**The 18th IFAC World Congress Milano (IFAC2011) [#i2591f3c] (2011.08.28-09.02 @ Milano, Italy) -Sayaka Kanata, Hiroaki Nakanishi and Tetsuo Sawaragi: Accurate Localization for Space Rovers and Its Computational Reduction, Preprint of the 18th IFAC World Congress Milano, pp. 11233-11238, 2011