Low sample rate 3D sonar sensor for mobile robots

Hong Mun Li, Lindsay Kleeman

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13 Citations (Scopus)


This paper describes an ultrasonic sensor which uses the times of flight from three Polaroid ultrasonic transducers arranged in an equilateral triangle to identify and localise planes, 2D and 3D corners. The sensor employs a Maximum Likelihood Estimator and a data acquisition system with a low sampling rate of about 59 kHz. The hardware and processing requirements are modest and fast due to the simple identification algorithms and sensor structure. Localisation of the objects can be achieved with range error of about 2 mm and bearing error of less than 1°. The sensor has been applied to localising a robot in a known indoor environment using 3D natural features and has achieved accuracies of 1 cm in position and 2° in bearing.

Original languageEnglish
Title of host publicationProceedings - IEEE International Conference on Robotics and Automation
Number of pages6
Publication statusPublished - 1 Jan 1995
EventIEEE International Conference on Robotics and Automation 1995 - Nagoya, Japan
Duration: 21 May 199527 May 1995
https://ieeexplore.ieee.org/xpl/conhome/3951/proceeding (Proceedings)


ConferenceIEEE International Conference on Robotics and Automation 1995
Abbreviated titleICRA 1995
Internet address

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