Time-of-flight estimation using extended matched filtering

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    Abstract

    The problem considered is the estimation of the ToF (time-of-flight) of an acoustic tone burst in a reflective environment. Secondary echoes cause a complex interference pattern. Only the ToF of the first echo is of interest. Conventional matched filtering (MF) cannot cope with overlapping echoes. An explicit model for overlapping echoes leads to a generalized MF consisting of a parallel bank of filters rather than just a single filter. The new method is evaluated with a dataset of 150 records of observed waveforms using 3-fold cross validation.
    Original languageEnglish
    Title of host publicationIEEE Sensors 2004
    Subtitle of host publicationproceedings ot the IEEE Sensors 2004
    Place of PublicationPiscataway, NJ
    PublisherIEEE Computer Society
    Pages1460-1463
    Number of pages4
    ISBN (Print)0-7803-8692-2
    DOIs
    Publication statusPublished - 24 Oct 2004
    Event2004 IEEE Sensors: The 3rd Conference on Sensors - Vienna, Austria
    Duration: 24 Oct 200427 Oct 2004
    http://ewh.ieee.org/conf/sensors2004/

    Conference

    Conference2004 IEEE Sensors
    CountryAustria
    CityVienna
    Period24/10/0427/10/04
    Internet address

    Keywords

    • TOF
    • EWI-17493
    • reflective environment
    • overlapping echoes
    • parallel filter bank
    • complex interference pattern
    • IR-48634
    • secondary echoes
    • extended matched filtering
    • echo
    • acoustic tone burst
    • METIS-220260
    • time-of-flight estimation

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