Abstract
Knowledge acquisition in map building is characterized with uncer- tainty and imprecision. This uncertainty is especially severe in the course of build- ing grid maps using sonar. Jean Dezert and Florentin Smarandache have recently proposed a new information fusion paradigm (DSmT), whose major advantage is that it deals with uncertainty and conflict of information. In this article, based on the Dezert-Smarandache Theory, the authors demonstrate how to fuse information from homogeneous or heterogeneous sensors differing in reliability. Then, they build the belief model of sonar grid map and construct the generalized basic belief assignment function (gbbaf). Pioneer II mobile robot has served as experimental platform and a 3D-Map has been built online based on DSmT. Finally, this work has established a firm foundation for a firm foundation for the simultaneous study of a dynamic unknown environment and multi-robots' map building.
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