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A Novel Broadband Ultrasonic Location System

Hazas, Michael and Ward, Andy (2002) A Novel Broadband Ultrasonic Location System. In: UbiComp '02: Proceedings of the 4th international conference on Ubiquitous Computing, 2002-09-292002-10-01, Göteborg, Sweden.

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    Abstract

    Indoor ultrasonic location systems provide ne-grained position data to ubiquitous computing applications. However, the ultrasonic location systems previously developed utilize narrowband transducers, and thus perform poorly in the presence of noise and are constrained by the fact that signal collisions must be avoided. In this paper, we present a novel ultrasonic location system which utilizes broadband transducers. We describe the transmitter and receiver hardware, and characterize the ultrasonic channel bandwidth. The system has been deployed as a polled, centralized location system in an of ce. Test results demonstrate that the system can function in high levels of environmental noise, and that it has the capability for higher update rates than previous ultrasonic location systems.

    Item Type: Conference or Workshop Item (Paper)
    Journal or Publication Title: UbiComp '02: Proceedings of the 4th international conference on Ubiquitous Computing
    Uncontrolled Keywords: cs_eprint_id ; 1610 cs_uid ; 382
    Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
    Departments: Faculty of Science and Technology > School of Computing & Communications
    ID Code: 13070
    Deposited By: ep_importer_comp
    Deposited On: 30 Jun 2008 15:44
    Refereed?: Yes
    Published?: Published
    Last Modified: 27 Jul 2012 01:58
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/13070

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