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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Simple Terrain Autonomous Navigation
 Novák, Daniel ; Obdržálek, David (advisor) ; Vodrážka, Jindřich (referee)
An important ability for light terrain outdoor navigation of an UGV (Un- manned Ground Vehicle) is traversability detection. We focus on creating an evaluation layer for move_base package, which is part of ROS (Robot Operating System), using a lidar sensor. After sorting measured points into grid cells of the costmap, we calculate the traversability of each cell. For this calculation, we have proposed three different functions - the difference between the maximum and minimum point heights, variance of point heights and computation of eigenvalues of the covariance matrix. We tested the pro- posed functions in selected real-world situations with respect of operation usability. As a result, the robot is able to reach a given location in light terrain based on the resulting costmap, preferring paths with lower terrain roughness.
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