A Mobile Robot Iconic Position Estimator using a Radial Laser Scanner - Robotics Institute Carnegie Mellon University

A Mobile Robot Iconic Position Estimator using a Radial Laser Scanner

J. Gonzalez, Anthony (Tony) Stentz, and A. Ollero
Journal Article, Journal of Intelligent and Robotic Systems, Vol. 13, No. 2, pp. 161 - 179, June, 1995

Abstract

Position determination for a mobile robot is an important part of autonomous navigation. In many cases, dead reckoning is insufficient because it leads to large inaccuracies over time. Beacon- and landmark-based estimators require the emplacement of beacons and the presence of natural or man-made structure respectively in the environment. In this paper, we present a new algorithm for efficiently computing accurate position estimates based on a radially-scanning laser rangefinder that does not require structure in the environment. The algorithm employs a connected set of short line segments to approximate the shape of any environment and can easily be constructed by the rangefinder itself. We describe techniques for efficiently managing the environment map, matching the sensor data to the map, and computing the robot's position. We present accuracy and runtime results for our implementation.

BibTeX

@article{Gonzalez-1995-16142,
author = {J. Gonzalez and Anthony (Tony) Stentz and A. Ollero},
title = {A Mobile Robot Iconic Position Estimator using a Radial Laser Scanner},
journal = {Journal of Intelligent and Robotic Systems},
year = {1995},
month = {June},
volume = {13},
number = {2},
pages = {161 - 179},
}