Abstract: This paper explores and compares the nature of the non-linear filtering techniques on mobile robot pose estimation. Three non-linear filters are implemented including the extended Kalman filter (EKF), the unscented Kalman filter (UKF) and the particle filter (PF). The criteria of comparison is the magnitude of the error of pose estimation, the computational time, and the robustness of each filter to noise. The filters are applied to two applications including the pose estimation of a two-wheeled robot in an experimental platform and the pose estimation of a three-wheeled robot in a simulated environment. The robots both in the experimental and simulated platform move along a non-linear trajectory like a circular arc or a spiral. The performance of their pose estimation are compared and analysed in this paper. PDF
Keywords: extended Kalman filtering; unscented Kalman filtering; particle filtering; Monte Carlo Methods; mobile robot tracking; Pose estimation