eprintid: 448 rev_number: 10 eprint_status: archive userid: 7 dir: disk0/00/00/04/48 datestamp: 2011-07-27 09:11:14 lastmod: 2014-07-17 12:15:37 status_changed: 2011-07-27 09:11:14 type: article metadata_visibility: show item_issues_count: 0 creators_name: Bemporad, Alberto creators_name: Di Marco, Mauro creators_name: Tesi, Alberto creators_id: alberto.bemporad@imtlucca.it creators_id: creators_id: title: Sonar-based wall-following control of mobile robots ispublished: pub subjects: QA75 subjects: TJ divisions: CSA full_text_status: none abstract: In this paper, the wall-following problem for low-velocity mobile robots, equipped with incremental encoders and one sonar sensor, is considered. A robust observer-based controller, which takes into account explicit constraints on the orientation of the sonar sensor with respect to the wall and the velocity of the wheels, is designed. The feedback controller provides convergence and fulfillment of the constraints, once an estimate of the position of the mobile robot, is available. Such an estimate is given by an Extended Kalman Filter (EKF), which is designed via a sensor fusion approach merging the velocity signals from the encoders and the distance measurements from the sonar. Some experimental tests are reported to discuss the robustness of the control scheme. date: 2000-03 date_type: published publication: Journal of dynamic systems measurement and control volume: 122 number: 1 publisher: American Society of Mechanical Engineers pagerange: 226-230 id_number: 10.1115/1.482468 refereed: TRUE issn: 0022-0434 official_url: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA000122000001000226000001&idtype=cvips&gifs=yes&ref=no citation: Bemporad, Alberto and Di Marco, Mauro and Tesi, Alberto Sonar-based wall-following control of mobile robots. Journal of dynamic systems measurement and control, 122 (1). pp. 226-230. ISSN 0022-0434 (2000)