Systematic and Non-Systematic Position Error Correction of Wheeled Robots while Navigation in a Square


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      Views: (2028)   Date: (Publication Date: 7-10 May 200...)   Pages: ()
    • Author:  Yeol  J.W. Dept. of Mech. Eng.  Columbia Univ.  New York  NY;  

    • Abstract:  Abstract This paper addresses a modified localization scheme of a wheeled mobile robot. When it navigates in a square given by the operator, the position error of a robot accumulates and it never ends up with the goal position where the robot intends to go to initially. The objective of localization is to estimate the position of a robot precisely. Many algorithms were developed and still are being researched for localization of a mobile robot at present. Among them, a localization algorithm named continuous localization proposed by Schultz (Schultz and Adams, 1998) has some merits on real-time navigation and is easy to be implemented compared to other schemes. Continuous localization (CL) is based on map-matching algorithm with global and local maps using only ultrasonic sensors for making grid maps following a given path by us (e.g. squares). In addition to CL, we here propose systematic error correction and fast powerful map-matching algorithm for localization of a mobile robot by experiments

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