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Localization is a common problem in underwater sensor networks. Since global navigation satellite systems do not work underwater, geo-referencing of underwater sensors requires other technologies. In this paper, we present an novel localization approach for nodes in an acoustic underwater sensor network. By combining pressure sensors with the functionality of modern acoustic USBL modems, the nodes...
Navigation is a challenging task for underwater devices, as there is no global navigation system available. This often restricted Autonomous Underwater Vehicles (AUV) in their operations, either spatially because they depend on reference markers that need to be deployed on the mission side, or by dive time as they need to surface regularly to geo-reference themselves via satellite. For most applications...
Modular robots consist of many mechatronic modules that can be connected into various shapes and therefore adapted for a given task or environment. Motion of the robots can be achieved by locomotion generators that control joints connecting the modules. An important advantage of modular robots is their ability to recover from failures by ejecting and replacing damaged modules. This type of failure...
Modular robots are built of many basic robotic modules that can be connected into robots of various shapes. These robots are able to recover from a failure by ejecting and replacing damaged modules. Although this type of failure recovery is usually suggested in literature, it may be precluded due inability of the broken modules to cooperate or if no spare modules are available. In such a case, locomotion...
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