Ghost suppressive ultrasonic measurement with a sparse phased array by using multiple frequencies

Abstract

An ultrasonic measurement technique has been proposed for ghost suppression with a sparse phased array by using multiple frequencies. A sparse phased array with an inter-element spacing over a half wavelength causes large grating lobes resulting in ghosts. In the proposed method, the ghosts have been effectively suppressed by combining with a lower… (More)

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@article{Yamashita2010GhostSU, title={Ghost suppressive ultrasonic measurement with a sparse phased array by using multiple frequencies}, author={K. Yamashita and Kazuhiko Yoshikawa and Ken-ichi Tomiyama and M. Noda}, journal={2010 World Automation Congress}, year={2010}, pages={1-6} }