Real-Time Offshore Coastal Acoustic Tomography Enabled With Mirror-Transpond Functionality

Autor:	Aruni Hanifa Dinan, Arata Kaneko, Xiao-Hua Zhu, Noriaki Gohda, Chuanzheng Zhang, Chen-Fen Huang, Hong Zheng, Bruce M. Howe, Naokazu Taniguchi, Ju Lin, Fadli Syamsudin, Minmo Chen, Yudi Adityawarman, Hidemi Mutsuda
Rok vydání:	2020
Předmět:	Current (stream) Transmission (telecommunications) Mean squared error Mechanical Engineering Transfer (computing) Range (statistics) Ocean Engineering Submarine pipeline Tomography Electrical and Electronic Engineering Residual Geology Remote sensing
Zdroj:	IEEE Journal of Oceanic Engineering. 45:645-655
ISSN:	2373-7786 0364-9059
DOI:	10.1109/joe.2018.2878260
Popis:	Real-time offshore coastal acoustic tomography (CAT) with mirror-transpond functionality is the most recent feature added to CAT to transfer travel-time data obtained in an offshore subsurface station to a shore station in real time, forming a round-trip travel time by original transmission and subsequent mirror transmission. The minimum unit, composed of one land and one offshore system, was operated to validate the performance of CAT with mirror-transpond functionality (MCAT) in the feasibility experiment, which was carried out in April 2017 in the Nekoseto Strait of the Seto Inland Sea, Japan. The root-mean-square error (RMSE) of the hourly mean range-average currents calculated from the original–original and original–mirror reciprocal travel-time pairs was 0.05 ms–1, significantly smaller than the variation range of the semidiurnal tidal current (0.2–0.3 ms–1) dominant at the experimental site. The RMSE for the residual current was also significantly smaller than its variation range. This study suggests the feasibility of using a compact MCAT array composed of one land and three offshore stations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::38a6b851b86cc239d085fc0f42a9590b https://doi.org/10.1109/joe.2018.2878260 Zobrazit plný text záznamu