A Tensor Model for the Calibration of Air-Coupled Ultrasonic Sensor Arrays

Air-coupled ultrasonic sensor arrays are suitable for inexpensive three-dimensional (3D) imaging, however, production tolerances of the transceivers and insufficient array geometry knowledge cause amplitude and phase errors that deteriorate the imaging performance. We introduce a tensor signal model...

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Bibliographic Details
Published in2024 32nd European Signal Processing Conference (EUSIPCO) pp. 1152 - 1156
Main Authors Muller, Raphael, Allevato, Gianni, Rutsch, Matthias, Haugwitz, Christoph, Kupnik, Mario, Pesavento, Marius
Format Conference Proceeding
LanguageEnglish
Published European Association for Signal Processing - EURASIP 26.08.2024
Subjects
Acoustics
Array signal processing
Atmospheric modeling
Imaging
Phased arrays
Sensor arrays
Tensors
Ultrasonic transducer arrays
Ultrasonic transducers
Ultrasonic variables measurement
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Summary:Air-coupled ultrasonic sensor arrays are suitable for inexpensive three-dimensional (3D) imaging, however, production tolerances of the transceivers and insufficient array geometry knowledge cause amplitude and phase errors that deteriorate the imaging performance. We introduce a tensor signal model based on piezoelectric ultrasonic transducer (PUT) characteristics and propose to calibrate the multiple-input multiple-output (MIMO) array with measurements. Simulations and real experiments evaluate the calibrated array parameters that are solutions of an optimization problem subject to our tensor model.
ISSN:2076-1465
DOI:10.23919/EUSIPCO63174.2024.10715269