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    Ultrasonic Array for Obstacle Detection Based on CDMA with Kasami Codes

    TitleUltrasonic Array for Obstacle Detection Based on CDMA with Kasami Codes
    Publication TypeJournal Article
    Año de publicación2011
    AutoresDiego, C, Hernández, Á, Jiménez, A, Álvarez, FJ, Sanz, R, Aparicio, J
    Idioma de publicaciónEnglish
    JournalSensors
    Volumen11
    Número12
    Páginas11464 - 11475
    Fecha de publicación12/2011
    Palabras claveultrasound; Phased Array; CDMA; B-Scan images
    ISSN1424-8220
    DOI10.3390/s111211464
    Abstract

    This paper raises the design of an ultrasonic array for obstacle detection based on Phased Array (PA) techniques, which steers the acoustic beam through the environment by electronics rather than mechanical means. The transmission of every element in the array has been encoded, according to Code Division for Multiple Access (CDMA), which allows multiple beams to be transmitted simultaneously. All these features together enable a parallel scanning system which does not only improve the image rate but also achieves longer inspection distances in comparison with conventional PA techniques.

    DOI10.3390/s111211464

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