Acoustic time-of-flight measurements in a reflective room

Ferdinand van der Heijden, Gloria Tuquerres, Paul Regtien

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    In this paper the problem how to estimate the time-of-flight of a received acoustic tone burst is addressed. In indoor applications, reflections cause interference patterns that are hardly predictable and can lead to large estimation errors. A generalisation of the well-known matched filter based on a non-stationary autocovariance model of the reflections allows us to develop a new estimator. Experiments show that the application of the new estimator can reduce these errors by about a factor four.
    Original languageEnglish
    Title of host publicationXVII IMEKO World Congress : Metrology in the 3rd millennium
    Subtitle of host publicationBook of summaries: June 22-27, 2003 Dubrovnik, Croatia
    EditorsDamir Ilić, Mladen Boršić, Josip Butorac
    Place of PublicationDubrovnik, Croatia
    PublisherCroatian Metrology Society
    Number of pages5
    ISBN (Electronic)978-953-7124-00-7
    ISBN (Print)978-953-9609-39-7
    Publication statusPublished - 22 Jun 2003
    EventXVII IMEKO World Congress 2003: Metrology in the 3rd Millennium - Dubrovnik, Croatia
    Duration: 22 Jun 200327 Jun 2003
    Conference number: 17


    ConferenceXVII IMEKO World Congress 2003


    • Reflection model
    • Time-of-flight
    • Acoustic TOF estimation


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