... Abstract This paper proposes an improved algorithm to estimate the angular misalignments of transceiver relative to attitude sensors for a high-precision USBL system. The procedure presented uses position measurements obtained with the un-calibrated system for a fixed seabed transponder...

... ABSTRACT: The GPS/Acoustic method includes GPS positioning and acoustic ranging techniques, and involves the positioning of seabed transponders. Because plate motion near Taiwan over the past few million years have averaged about 8 cm per year, the accuracy of GPS/Acoustic positioning...

... and performance of the hybrid LBL positioning and communication system under laboratory conditions and during a long-term test. TECHNOLOGY LBL acoustic positioning provides an opportunity for localisation of a transponder s position with high accuracy. The accuracy depends on the spatial separation of the LBL...

... Strait is situated in the west side with the water depth less than 100 meters in most area. velocity field construction simulation drifter kuroshio receive antenna preliminary result transponder antenna radar site taiwan trajectory velocity data antenna pattern surface current...

... and safety of marine operations involving dynamic positioned (DP) vessel(s) operating close to other offshore structures or vessels. RADius measures relative distance and bearing between a moving vessel equipped with an interrogator and transponders with unique identity deployed on the target which ensure...

... proposed for identifying alignment errors. Usually, those proposed methods are performed using a fixed seabed transponder as a reference point. Opderbecke (1997) applied an iterative adaptive procedure to identify angular misalignments between attitude and USBL sensors. algorithm transponder...

... antenna 1 music spectrum velocity distribution current velocity obstacle vlcc radio wave surface current artificial intelligence radar antenna wavelength estimation method transponder Estimation Method for Arrival Directions of Radio Waves to Measure the Surface Current of Sea using VHF...

... urashima vehicle sea trial auv sonar fuel cell system lithium-ion battery underwater vehicle power source support vessel transponder upstream oil & gas battery hydrogen metal hydride controller artificial intelligence position data navigation mode There are concerns...

... artificial intelligence transponder seafloor lithium-ion rechargeable battery power source system pressure hull Deep-Sea Cruising AUV URASHIMA - Challenge to the Record for the Autonomous Navigation - Shojiro Ishibashi, Taro Aoki, Ikuo Yamamoto, Satoshi Tsukioka, Hiroshi Yoshida, Tadahiro Hyakudome...

... %. nippon marine enterprise ltd acoustic command operation multi-channel seismic survey system pressure housing glass sphere penetrator jamstec sinker glass housing obss release device upstream oil & gas hemisphere recovery rate release command distortion transponder deployment ascent...

... the world. The body of the vehicle was completed in 2000, and then various functional tests were carried out in sea-going tests. inertial navigation system artificial intelligence autonomous navigation mode vehicle battery electrical industrial apparatus power source transponder support...

... ABSTRACT Rope and Grapnel Rescue System is installed on board the R/V Yokosuka in order to recover manned submersible Shinkai 6500 in case of emergency. We have carried out recovery operations of the transponder mooring system for 11 times between 1990 and 2002 using the rescue system. Ten...

... %. reservoir characterization hemisphere operation glass sphere upstream oil & gas multi-channel seismic survey acoustic command release command jamstec nippon marine enterprise ltd recovery rate obss sinker release device pressure housing ocean bottom seismometer transponder glass housing...

..., but there are a few studies. directional capability communication relative position sea test transponder subsea system position error underwater time navigation system vehicle urashima slant range auv bearing angle auv approach support vessel autonomous underwater vehicle receiver artificial...

... the appreciable part yet. Recently, many discussions are made on the expansion of deserts and warming of the earth which may have been caused by destruction of global environment. The anomaly should be caused by the unbalance of heat or the interaction among atmosphere, ocean, etc. fuel cell transponder...

... elements, the direct image can be obtained. (2) Acoustic Telemetry: This is a system of two way acoustic links with the uplink from the AUV to the mother ship and the down]ink from the mother ship to the AUV using. (3) Homing Sonar: This system transmits the interrogation signal for target transponders...

..., release transponders and a communication transponder. A simplified block diagram of the the Mother Station is shown in Fig. I. Size of the frame is 4.1 m in length, 3.2 m in width and 2.6 m in height. 603 Total weight of the Mother Station with full installation is approximately 5 tf in air and 0.9 tf...

... foundation transponder tow descent rov positioning Proceedings of the Fifth (1995) IntenuJtional Offshore and Pow Engineering Conference The Hague, The Netherlands, June 11-16, 1995 Copyright © 1995 by The International Society of Offshore and Polar Engineers ISBN 1-880653-16-8 (Set); ISBN 1-880653...