A Feasibility Study on Underwater 2D Localization Using PZT pMUTs

A Feasibility Study on Underwater 2D Localization Using PZT pMUTs

2023 IEEE International Ultrasonics Symposium (IUS)

10.1109/IUS51837.2023.10306970

http://dx.doi.org/10.1109/ius51837.2023.10306970

Mantalena Sarafianou, Daniel Ssu-Han Chen, David Sze Wai Choong, Duan Jian Goh, Jihang Liu, Joshua En-Yuan Lee, Srinivas Merugu, Qing Xin Zhang, Peter H. K. Chang, Domenico Giusti, Laura Castoldi, Claudia Pedrini, Luca Barabani, Alberto Leotti, Young Jik Hur, Yee Lung Lee

12 November 2023

Sarafianou, M., Chen, D. S.-H., Sze Wai Choong, D., Goh, D. J., Liu, J., Lee, J. E.-Y., Merugu, S., Zhang, Q. X., Chang, P. H. K., Giusti, D., Castoldi, L., Pedrini, C., Barabani, L., Leotti, A., Hur, Y. J., & Lung Lee, Y. (2023). A Feasibility Study on Underwater 2D Localization Using PZT pMUTs. 2023 IEEE International Ultrasonics Symposium (IUS), 1–4. https://doi.org/10.1109/ius51837.2023.10306970

This work presents, for the first time, underwater 2D localization of a reflector through only two pulse-echo measurements using a trilateration methodology with a pair of lead zirconate titanate (PZT) piezoelectric micromachined ultrasonic transducer (pMUT) arrays. A matched filter method is used to compute the range values for the received signals. Trilateration is employed to determined the absolute location of the reflector via the estimated range values through the use of the geometry of circles. Experimental data are collected using two PZT pMUTs, which exhibit impressive transmit and received sensitivities, immersed in a FC-70 fluid for the validation of the method with the results highlighting the suitability of the proposed method for underwater 2D acoustic object localization paving the way for the use of pMUTs towards new immersion applications.

Publisher Copyright

This research / project is supported by the Agency for Science, Technology and Research - Piezo Specialty Lab-in-a-Fab (LIF 1.0)
Grant Reference no. : I1901E0050

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https://oar.a-star.edu.sg/communities-collections/articles/21120

1948-5727

Institute of Microelectronics