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3D position sensing using the difference in the time-of-flights from a wave source to various receivers

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2 Author(s)
M. Walworth ; Sch. of Eng. & Math., Lake Superior State Univ., Sault Ste. Marie, MI, USA ; A. Mahajan

3D positioning systems typically use actual time-of-flights for triangulation to determine the position of a wave source. Problems, such as inherent time delays and synchronization of the receiver/transmitter pairs are prevalent in these systems. This paper presents a novel formulation for the estimation of the coordinates of an ultrasonic wave source based on the differences in the time-of-flights (TOFs) to various receivers fixed in an inertial frame of reference. A thorough analysis of the formulation and a 1D prototype are presented. Typical applications benefiting from this technology are position sensing systems that may be used in robotics, AGV guidance and navigation, virtual reality, and vibrations

Published in:

Advanced Robotics, 1997. ICAR '97. Proceedings., 8th International Conference on

Date of Conference:

7-9 Jul 1997