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Nearness diagram (ND) navigation: collision avoidance in troublesome scenarios

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2 Author(s)
Minguez, J. ; Dept. de Informatica e Ingenieria de Sistemas, Univ. de Zaragoza, Spain ; Montano, L.

This paper addresses the reactive collision avoidance for vehicles that move in very dense, cluttered, and complex scenarios. First, we describe the design of a reactive navigation method that uses a "divide and conquer" strategy based on situations to simplify the difficulty of the navigation. Many techniques could be used to implement this design (since it is described at symbolic level), leading to new reactive methods that must be able to navigate in arduous environments (as the difficulty of the navigation is simplified). We also propose a geometry-based implementation of our design called the nearness diagram navigation. The advantage of this reactive method is to successfully move robots in troublesome scenarios, where other methods present a high degree of difficulty in navigating. We show experimental results on a real vehicle to validate this research, and a discussion about the advantages and limitations of this new approach.

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Robotics and Automation, IEEE Transactions on  (Volume:20 ,  Issue: 1 )