High-precision robust broadband ultrasonic location and orientation estimation

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Title: High-precision robust broadband ultrasonic location and orientation estimation
Authors: Gonzalez-Hernandez, Juan
Bleakley, Chris J.
Permanent link: http://hdl.handle.net/10197/1892
Date: 21-Oct-2009
Abstract: This paper presents an indoor broadband ultrasonic system for estimation of a mobile device’s 3-D location and three-axis orientation using beacons. It presents the first implementation and characterization of a real frequency hopping spread spectrum-based ultrasonic positioning system, a novel application of uniform circular array angle of arrival estimation techniques to indoor location-orientation estimation and a novel hybrid algorithm for location-orientation estimation. The performance of the system was assessed experimentally. The system has been shown to provide better accuracy, robustness to noise and multipath than other previously reported indoor ultrasonic location or orientation estimation systems with comparable range in the typical office environment tested. The prototype provided location estimates with an error of less than 1.5 cm and and error of less than 4.5 in the yaw, 3 in the pitch and 3.5 in the roll, in 95% of cases.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: IEEE
Journal: IEEE Journal of Selected Topics in Signal Processing
Volume: 3
Issue: 5
Start page: 832
End page: 844
Copyright (published version): 2009 IEEE
Keywords: Angle of arrivalOrientation estimationLocation estimationTime of arrivalUltrasound
Subject LCSH: Mobile computing
Geospatial data
Ubiquitous computing
DOI: 10.1109/JSTSP.2009.2027795
Language: en
Status of Item: Peer reviewed
Appears in Collections:Computer Science Research Collection

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