Development of Underwater Transmission System

水下传输系统的开发

• 批准号: 10555131
• 负责人: NAGASHIMA Yutaka
• 金额: $ 4.35万
• 依托单位: Sasebo National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-10555131/
• 关键词: Underwater Transmission; Frequency Shift Keying; SONAR; Autonomous Underwater Vehicle; Autonomous Navigation; 3D-Positioning System; Super Short Base-Line System; Recognition Fish Species; 遠隔制御; 障害物センサ; 航行用センサ; 海洋情報伝送; FSK変調方式; マルチパス; 水中ロボット

Marine environment is recognized one of the most important factor in relation with abnormal climate. The investigation of marine and underwater are increased around the world. We have researched about the useful system of marine development.The following are our results in this research.(1) The acoustic characteristics of large-size anecoic tank is measured in order to evaluate the propagational properties. The results show the efficiency of the anechoic tank.(2) The underwater transmisson system using FSK modulation method is developed. The system can control the remotely operated vhehicle (ROV) at 150bps in the anecoic tank. The system can communicate the data between the mothership and underwater vehicle away about 200m in the sea.(3) The compact autonomous underwater vehicle (AUV) is developed in order to survey the closed sea marine environment and marine creature. The vehicle can navigate autonomouly using the depth sensor, collision avoidance sonar, and depth sensor. We have made a compact and light weighted autonomous underwater vehicle by employing the variable vector propeller.(4)We developed the 3-D SSBL (Super Short Base-Line) positioning system in order to measure the distance and direction between the mothership and underwater vehicle. The system can measure acculately.(5)The recognition system of the fish species is realized using morphological filter. The system can recognize the pilchard sardine, macherel, and Japanese horse macherel within 90%.

海洋环境是引起气候异常的重要因素之一。在世界范围内，对海洋和水下的调查正在增加。对海洋开发的有益体系进行了研究。以下是我们的研究结果。(1)测量了大型经济水箱的声学特性，以评价其传播特性。结果表明了消声池的有效性。(2)研制了采用FSK调制方法的水下传输系统。该系统可以在经济油箱中以150bps的速度控制遥控潜水器（ROV）。该系统可以在距离海面约200米的母船和水下航行器之间进行数据通信。(3)紧凑型自主水下航行器（AUV）是为了探测封闭海域的海洋环境和海洋生物而研制的。车辆可以使用深度传感器、避碰声纳和深度传感器自主导航。我们利用可变矢量螺旋桨制造了一种体积小、重量轻的自主水下航行器。(4)研制了三维超短基线（SSBL）定位系统，用于测量母船与水下航行器之间的距离和方向。该系统测量精度高。(5)利用形态滤波技术实现了鱼种识别系统。该系统对沙丁鱼、马鲛鱼、日本马鲛鱼的识别率在90%以内。

项目成果

Yutaka Nagashima, Yukihisa Nanbu, Masakatu Ohgaki: "On the Underwater Sound Characteristics of Anechoic Tank"Research Reports of Sasebo National College of Technology. No.36. 27-32 (1999)

Yutaka Nagashima、Yukihisa Nanb​​u、Masakatu Ohgaki：《论消声池的水下声音特性》佐世保工业大学研究报告。

Yutaka Nagashima: "Compact Autonomous Underwater Vehicle Using VARIVEC Propeller"Proceedings of 1st Int.Symp.on Aqua Bio-Mechanisms. Vol.1. 321-326 (2000)

Yutaka Nagashima：“使用 VARIVEC 螺旋桨的紧凑型自主水下航行器”第一届 Int.Symp.on Aqua Bio-Mechanisms 会议记录。

T.M.Jamal: "Acoustic Positioning and Communication System for Underwater Vehicle"Proceedings of the 2000 ISIM. Vol.1. 32-36 (2000)

T.M.Jamal：“水下航行器声学定位和通信系统”2000 年 ISIM 会议记录。

Yukihisa Nanbu, Yutaka Nagashima, Hideaki Takahira, Masakatsu Ohgaki, Masao Ohtsuka: "Reconstruction of the refractive-index profiles of a symmetric multi-layered cylinder using the Diffraction Tomography-Investigation of the reconstruction method based o

Yukihisa Nanb​​u、Yutaka Nagashima、Hideaki Takahira、Masakatsu Ohgaki、Masao Ohtsuka：“使用衍射断层扫描重建对称多层圆柱体的折射率分布 - 基于衍射断层扫描的重建方法的研究

長嶋豊: "可変ベクトル推進器を用いた無索式海中ロボットの基本制御-第1報-"西部造船会会報第98号. Vol.98号. 151-160 (1999)

Yutaka Nagashima：“使用可变矢量推进装置的无绳水下机器人的基本控制 - 第一份报告”西方造船工程师协会公告第 98 期。卷 151-160 (1999)