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Inicio › principal component analysis

    Ultrasonic Multitransducer System for Classification and 3-D Location of Reflectors Based on PCA

    TitleUltrasonic Multitransducer System for Classification and 3-D Location of Reflectors Based on PCA
    Publication TypeJournal Article
    Año de publicación2009
    AutoresOchoa, A, Ureña, J, Hernández, Á, Mazo, M, Jimenez, JA, del Perez, MC
    Idioma de publicaciónEnglish
    JournalIEEE Transactions on Instrumentation and Measurement
    Volumen58
    Número9
    Páginas3031 - 3041
    Fecha de publicación09/2009
    Rank in category34/56
    JCR CategoryInstrumentation and Measurements
    Palabras claveClassification system, macrosequences, principal
    JCR Impact Factor0,798
    ISSN0018-9456
    DOI10.1109/TIM.2009.2016820
    Abstract

    This paper presents a system to classify and locate
    basic ultrasonic reflectors (plane, corner, and edge) in 3-D environments.
    The classification system is based on the principalcomponent-
    analysis (PCA) technique, using the time of flight
    (TOF) as the classification parameter. The system proposes a sensorial
    structure to simultaneously obtain up to 16 TOFs at every
    emission/scanning process. A particular and different macrosequence
    has been assigned to every transducer in the sensorial
    system to encode their emissions. These macrosequences, obtained
    from complementary sets of sequences, allow simultaneous emission
    and reception to be carried out with all the transducers for
    the same scanned environment. The set of obtained TOFs make it
    possible to identify the type of ultrasonic reflector, as well as its
    position in 3-D environments. The results achieved by the classification
    system are presented for both simulated and real data.

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