Multiple Acoustical Holography Method for Localization of Objects in Broad Range using Audible Sound. - Haruhiko Niwa; Tetsuya Ogata; Kazunori Komatani; Hiroshi G. Okuno (IROS, 2006)

Distance Estimation of Hidden Objects Based on Acoustical Holography by applying Acoustic Diffraction of Audible Sound. - Haruhiko Niwa; Tetsuya Ogata; Kazunori Komatani; Hiroshi G. Okuno (ICRA, 2007)

GPS-based indoor positioning system with multi-channel pseudolite. - Haruhiko Niwa; Kenri Kodaka; Yoshihiro Sakamoto; Masaumi Otake; S. Kawaguchi; Kenjiro Fujii; Yuki Kanemori; Shigeki Sugano (ICRA, 2008)

Pose estimation of a mobile robot on a lattice of RFID tags. - Kenri Kodaka; Haruhiko Niwa; Yoshihiro Sakamoto; Masaumi Otake; Yuki Kanemori; Shigeki Sugano (IROS, 2008)

Active localization of a robot on a lattice of RFID tags by using an entropy map. - Kenri Kodaka; Haruhiko Niwa; Shigeki Sugano (ICRA, 2009)

Rotation-Based Dynamic Localization at an Initial Dead-Zone Avoidance Stage on an RFID Tag Lattice. - Kenri Kodaka; Haruhiko Niwa; Shigeki Sugano (J. Robotics Mechatronics, 2009)