50 kHz bottom backscattering measurements from two types of artificially roughened sandy bottoms SCIE SCOPUS

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
50 kHz bottom backscattering measurements from two types of artificially roughened sandy bottoms
Author(s)
Son, Su-Uk; Cho, Sungho; Choi, Jee Woong
KIOST Author(s)
Cho, Sungho(조성호)
Alternative Author(s)
조성호
Publication Year
2016-07
Abstract
Laboratory measurements of 50 kHz bottom backscattering strengths as a function of grazing angle were performed on the sandy bottom of a water tank; two types of bottom roughnesses, a relatively smooth interface and a rough interface, were created on the bottom surface. The roughness profiles of the two interface types were measured directly using an ultrasound arrival time difference of 5MHz and then were Fourier transformed to obtain the roughness power spectra. The measured backscattering strengths increased from -29 to 0 dB with increasing grazing angle from 35 to 86 degrees, which were compared to theoretical backscattering model predictions. The comparison results implied that bottom roughness is a key factor in accurately predicting bottom scattering for a sandy bottom. (C) 2016 The Japan Society of Applied Physics
ISSN
0021-4922
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2175
DOI
10.7567/JJAP.55.07KG02
Bibliographic Citation
JAPANESE JOURNAL OF APPLIED PHYSICS, v.55, no.7, 2016
Publisher
IOP PUBLISHING LTD
Subject
SHALLOW-WATER; TRANSDUCER ARRAY; HIGH-FREQUENCIES; ROUGHNESS MODEL; GRAZING ANGLES; SEA; SCATTERING; SEDIMENT; STRENGTH; SURFACE
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
IOP PUBLISHING LTD
Related Researcher
Research Interests

Underwater Acoustic Modeling,Signal Processing,Underwater Target Detection,수중음향모델링,신호처리,수중표적탐지

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