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Rapid technical advancement has seen a move away from more traditional methods of mine clearance operations such as the use of divers in favour of using unmanned and remote vehicles. Remotely Operated Vehicles (ROVs) are now used extensively in offshore and military operations for complex inspection tasks where Dynamic Positioning (DP) software is used to reduce operator workload and provide stability...
Teledyne SeaBotix is developing a robotic subsea winch to be used in deep deployments of an observation class (20kg) ROV to 4000 m depths. The subsea winch system can be incorporated in a self-contained launch and recovery system or via larger vehicles like work class ROVs or submarines. High reliability is an underlying design objective in subsea systems due to the very high cost of downtime or system...
This paper discusses a novel approach to utilizing extra thrusters for additional vertical lift for an ROY. The approach uses an auto-configurable algorithm which enables the operator to switch between the standard configuration and the enhanced-lift configuration, without changing the power supply for the vehicle. The results of a modified bollard pull test and a weight lift experiment illustrating...
In the littoral ocean environment ambient noise makes passive detection difficult, placing increased demands on active sonar. For active sonar systems that use azimuthally omnidirectional transmitters the bottom, surface, shoreline reverberation and clutter can be quite challenging to overcome when using Doppler sensitive waveforms, especially for low velocity targets. Straightforward application...
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