ワイドバンドマルチビーム測深機(R2Sonic2024)の帯域制限確認試験

URI http://harp.lib.hiroshima-u.ac.jp/jcga/metadata/12294
File
Title
ワイドバンドマルチビーム測深機(R2Sonic2024)の帯域制限確認試験
Title Alternative
An examination of the frequency band limits for the wide band multibeam echo-sounder (R2Sonic2024)
Author
氏名 倉本 和興
ヨミ クラモト カズオキ
別名 Kazuoki KURAMOTO
氏名 横田 裕輔
ヨミ ヨコタ ユウスケ
別名 Yusuke YOKOTA
氏名 吉田 善吾
ヨミ ヨシダ ゼンゴ
別名 Zengo YOSHIDA
氏名 柴田 耕治
ヨミ シバタ コウジ
別名 Koji SHIBATA
Subject
Frequency band limits, Multibeam echo-sounder, Ocean engineering basin
Abstract

When we perform logistic support of underwater search on divers by making use of the
Forward Looking Sonar (FLS), it is known that strong interference lines occasionally appear on
the sonar image in response to the breathing of divers. This seems to be because that the high
frequency respiratory sound is emitted when the diver breathes in the water and is overlapped with
the echo signal from the sonar projector and then has been received all together consequently. To
confirm this, it is necessary to proceed a high frequency analysis of the underwater respiratory
sound of divers in the first stage. But it is important to know ahead of time that we confirm the
frequency band limits of the echo-sounder (R2Sonic2024) we have actually used.
In this study, we carried out an examination of the frequency band limits of sonar by using
the ocean engineering basin, that is, whether the sonar has band filter or not in receiving and how
much band limitation is set in the case of the limits existing.

Journal Title
海上保安大学校研究報告, 理工学系
Volume
63
Issue
第1・2号 合併号
Spage
29
Epage
33
Published Date
2021-03-25
Publisher
海上保安大学校
ISSN
0287-2951
NCID
AN10088865
Self DOI
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Sort Key
04
Set
jcga