Title :
A stochastically stable solution to the problem of robocentric mapping
Author :
Bishop, Adrian N. ; Jensfelt, Patric
Author_Institution :
Centre for Autonomous Syst., KTH, Stockholm, Sweden
Abstract :
This paper provides a novel solution for robocentric mapping using an autonomous mobile robot. The robot dynamic model is the standard unicycle model and the robot is assumed to measure both the range and relative bearing to the landmarks. The algorithm introduced in this paper relies on a coordinate transformation and an extended Kalman filter like algorithm. The coordinate transformation considered in this paper has not been previously considered for robocentric mapping applications. Moreover, we provide a rigorous stochastic stability analysis of the filter employed and we examine the conditions under which the mean-square estimation error converges to a steady-state value.
Keywords :
Kalman filters; mean square error methods; mobile robots; nonlinear filters; stability; stochastic systems; autonomous mobile robot dynamic model; coordinate transformation; extended Kalman filter; mean-square error estimation; robocentric mapping problem; standard unicycle model; steady-state value; stochastically stability analysis; Convergence; Coordinate measuring machines; Covariance matrix; Estimation error; Mobile robots; Robot kinematics; Robotics and automation; Simultaneous localization and mapping; State estimation; Stochastic processes;
Conference_Titel :
Robotics and Automation, 2009. ICRA '09. IEEE International Conference on
Conference_Location :
Kobe
Print_ISBN :
978-1-4244-2788-8
Electronic_ISBN :
1050-4729
DOI :
10.1109/ROBOT.2009.5152424