Continuous localization via wide-area Differential Global Positioning System for outdoor navigation of mobile robots

Article type: Research Article

Authors: Martínez, J.L.^{; *} | Molina-Mesa, R. | Mandow, A. | Rodríguez-Serrano, C.A.

Affiliations: Andalusian Institute of Advanced Automation and Robotics, Severo Ochoa Street, No. 4, Andalusian Technological Park, 29590-Málaga, Spain

Correspondence: [*] Corresponding author: J.L. Martínez, Tel.: +34 5 213 1408; Fax: +34 5 213 1413; E-mail: [email protected]

Abstract: Mobile robots must have some effective method for determining their position in the working environment in order to operate appropriately. In this paper, precise outdoor positioning of a vehicle is achieved by continuously fusing odometry with wide-area Differential Global Positioning System (DGPS) data through a Kalman filter. The propagation and reduction of spatial uncertainty is computed together with the mobile robot's coordinates and heading. Two distinct sources of differential corrections have been applied to autonomous and teleoperated navigation of the Aurora mobile robot in a road network. Path teaching and path tracking have been successfully tested in several experiments over a relatively flat surface.

DOI: 10.3233/ICA-2004-11101

Journal: Integrated Computer-Aided Engineering, vol. 11, no. 1, pp. 1-13, 2004