Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418)最新文献_第7页

Midway I: the survey of a historical battle site 中途岛1:对一个历史战役地点的调查

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852508

J. Palshook, S. King, C. Ingram

{"title":"Midway I: the survey of a historical battle site","authors":"J. Palshook, S. King, C. Ingram","doi":"10.1109/UT.2000.852508","DOIUrl":"https://doi.org/10.1109/UT.2000.852508","url":null,"abstract":"Nauticos Corporation under a CRADA (Cooperative Research and Development Agreement) provides renavigation technology to the United States Navy. This technology enables ocean explorers to locate objects on the seabed. In a test of this new technology, a Navy team used this capability to discover the site of the Imperial Japanese fleet sunk at the Battle of Midway. In the first of three phases, the purpose of Midway I was to discover the location of at least one of the four Japanese aircraft carriers sunk at Midway. Analysis of data included a detailed navigation reconstruction using Nauticos' proprietary Kalman filter-based navigation analysis software, RENAV/sup TM/. With an understanding of general navigation principles, familiarity of ship's performance data, and sophisticated modeling techniques, Nauticos analysts were able to identify and quantify navigation errors in the data. Modern day underwater explorers are able to locate objects on the seabed today with much greater precision and confidence than ever before. This technology makes possible the discovery of many important historical and cultural sites which are now lost under the ocean.","PeriodicalId":397110,"journal":{"name":"Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125683985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensor systems for robotic applications under water 水下机器人传感器系统

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852567

H. Tonshoff, E. Bedhief, U. Kruse

引用次数: 3

Underwater gravimeter on board the R-One robot R-One机器人上的水下重力仪

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852559

H. Fujimoto, K. Koizumi, M. Watanabe, A. Oshida, T. Furuta, N. Takamura, T. Ura

引用次数: 11

New AUV designed for lake environment monitoring 用于湖泊环境监测的新型水下航行器

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852519

M. Kumagai, T. Ura, Y. Kuroda, R. Walker

引用次数: 12

Installation of high precision seismometer unit at the Ryukyu Trench using Guam-Okinawa geophysical submarine cable (GOGC: FOMER TPC-2 cable) 利用关岛-冲绳地球物理海底电缆(GOGC: former TPC-2电缆)在琉球海沟安装高精度地震检波器单元

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852573

J. Kasahara, K. Kawaguchi, R. Iwase, Y. Shirasaki

{"title":"Installation of high precision seismometer unit at the Ryukyu Trench using Guam-Okinawa geophysical submarine cable (GOGC: FOMER TPC-2 cable)","authors":"J. Kasahara, K. Kawaguchi, R. Iwase, Y. Shirasaki","doi":"10.1109/UT.2000.852573","DOIUrl":"https://doi.org/10.1109/UT.2000.852573","url":null,"abstract":"An ocean bottom broadband seismometer (OBBS) was installed 2170 m deep on the slope of the Ryukyu Trench with other sensors through the VENUS project. Prior to the installation of the OBBS unit, the bottom telemetry system, which supplies electrical power to the instruments, telemetry system and cable was installed on the ocean bottom by a method similar to cable repair works. Since broadband seismometers are extremely fragile, it was handled with special care. The installation of the seismometer was done by use of a deep-tow system and the ROV Kaiko-10 K. In September 1999, the OBBS unit was deployed at the target position, at 80-meter from the bottom telemetry system, with several meters allowances using a deep-tow system. To install the instrument at the exact location, the mother ship of the deep-tow system was precisely navigated. The connecting cable and eight weights were also dropped from the deep-tow system. The ROV Kaiko-10 K extended the 100 m-long connecting cable from the seismometer to the junction box and connected it to the junction box. The OBBS unit collected one and half month records. Several significant earthquakes near Japan, in Taiwan and San Francisco have been observed since the installation.","PeriodicalId":397110,"journal":{"name":"Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418)","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115423508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The development and utilization of the "underwater backhoe," a multifunctional underwater construction machine “水下挖土机”——一种多功能水下施工机械的开发利用

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852564

M. Ishii, S. Oshiro, T. Itoh

{"title":"The development and utilization of the \"underwater backhoe,\" a multifunctional underwater construction machine","authors":"M. Ishii, S. Oshiro, T. Itoh","doi":"10.1109/UT.2000.852564","DOIUrl":"https://doi.org/10.1109/UT.2000.852564","url":null,"abstract":"The rubble leveling that accompanies the base mound construction for breakwaters and embankments takes place in demanding underwater environments involving extremely high risks. There is also concern about labor shortages and aging of divers. Moreover, harbor development sites have extended farther offshore in recent years, making it necessary to cope with more treacherous weather and deep-water conditions. Under these circumstances, in efforts to ensure safety and to shorten the process by speeding up operations, the demand for a safe underwater construction machine that can perform such tasks has been growing. In response to such demands, the \"underwater backhoe\", which mechanizes manual work performed by divers, has been developed. The device excels at tasks such as armor-stone leveling and rubble leveling required for base mound construction for breakwaters and embankments. This paper provides a background of underwater backhoe development and presents an overview of existing backhoes. It also introduces several instances of use in underwater work and considers several problems and areas for improvement.","PeriodicalId":397110,"journal":{"name":"Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115463455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A method to measure ship's underwater electric field from deck 一种从甲板测量船舶水下电场的方法

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852547

M. Hirota

引用次数: 2

Gravitational field maps and navigational errors 引力场图和导航误差

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852532

G. Bishop

{"title":"Gravitational field maps and navigational errors","authors":"G. Bishop","doi":"10.1109/UT.2000.852532","DOIUrl":"https://doi.org/10.1109/UT.2000.852532","url":null,"abstract":"It has been proposed to use gravitational field maps to correct navigational errors inherent in some navigational systems presently in use on unmanned underwater vehicles (UUV) and that such a technology might form the basis for a new UUV navigational system. However, the accuracy and usefulness of the navigational solution depends, among other things, on the accuracy of the gravitational field maps. Since gravitational fields are generally sparsely and irregularly sampled, mapping algorithms must be used to construct the field maps. To assess the impact of field maps computed from sparse sets of data on the accuracy of the navigational solution, the kriging algorithm is used to compute field maps with various grid spacings from both simulated and measured field data. Then position and bearing errors are simulated and the various field maps are used to obtain corrected navigational fixes. To assess the impact of the density of the field data on the accuracy of the navigational fix, the simulated data are sub-sampled and the process is repeated. Numerical results are shown that demonstrate some of the effects of grid spacing and data density on the accuracy of the navigational fix and that gravitational field maps may be used to provide a very accurate navigational fix.","PeriodicalId":397110,"journal":{"name":"Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129209186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 47

Autonomous target tracking by AUVs using dynamic vision 基于动态视觉的auv自主目标跟踪

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852539

Yang Fan, Arjuna Balasuriya

{"title":"Autonomous target tracking by AUVs using dynamic vision","authors":"Yang Fan, Arjuna Balasuriya","doi":"10.1109/UT.2000.852539","DOIUrl":"https://doi.org/10.1109/UT.2000.852539","url":null,"abstract":"Proposes a method for underwater target tracking using optical data, which consists of color, texture, shape and dynamic properties of the environment. Here, how the dynamic properties from image sequences can be used for target tracking by autonomous underwater vehicles (AUVs) is studied. Optical flow techniques are used to derive the dynamics of the images. The objects of interest are extracted from the images by using the dynamical properties and their optical features. The consecutive dynamic behavior of objects of interest is estimated based on the current dynamics. Using the predicted dynamics, the region of interest (ROI) in the image can be identified reducing the amount of data to be processed. This increases the speed of processing using the hardware available in small pressure hulls. Image dynamics and feature position information fused with other on-board sensor information, the navigational commands for the AUV are derived. In the paper, the extraction of objects of interest from the images based on dynamic vision is presented and the performance of this method for underwater target tracking is demonstrated by experimental results.","PeriodicalId":397110,"journal":{"name":"Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418)","volume":"463 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122358206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Wavelet transform and its application to autonomous underwater vehicle control system fault detection 小波变换及其在自主水下航行器控制系统故障检测中的应用

Proceedings of the 2000 International Symposium on Underwater Technology (Cat. No.00EX418) Pub Date : 2000-05-23 DOI: 10.1109/UT.2000.852523

Xu Dermin, G. Lei

引用次数: 7