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Silicon Photomultipliers (SiPMs) have recently been recognized as an interesting alternative to photomultiplier tubes (PMTs) thanks to their high sensitivity and time resolution. They can closely approach quantum-limited sensitivity in the detection of weak optical signals. Ifremer (French Research Institute for Exploitation of the Sea) and Institut Fresnel research lab have been investigating appropriate...
The ever increasing demand for biological and geophysical data of the underwater environment has prompted the French oceanographic institute IFREMER to develop a new underwater vehicle to meet novel scientific exploration challenges. The HROV Ariane bases its core innovative features on the duality of its operational modes, namely tethered and autonomous, both being implemented to allow operation...
The MORPH project (FP 7, 2012–2016) advances a novel concept of an underwater robotic system composed of a number of spatially separated mobile robot-modules, carrying complementary resources. Instead of being physically coupled, the modules are connected via communication links that allow a limited flow of information among them. Without rigid links, the so called Morph Supra-Vehicle can reconfigure...
The MORPH project (FP 7, 2012–2016) aims at the development of efficient methods and tools to map the underwater environment in situations that defy existing technology. Namely, missions that involve underwater surveying and marine habitat mapping of rugged terrain and structures with full 3D complexity, including near-vertical cliffs. Potential applications include the study of cold water coral reefs...
Georeferenced optical surveys of the seabed are obtained by composing mosaics of underwater images to allow scientists to study marine habitats, classify their features, quantify the population and measure the evolution over time. These are sought after tools but extremely complex to produce given the extent of the surfaces to map and the limited swath and range obtainable with standard diver or ROV...
As unmanned marine vehicles rapidly establish themselves as powerful and reliable tools in an ever increasing number of tasks, the focus of research has shifted towards simultaneous operation of coordinated fleets of vehicles. The GREX project joins this development effort with a comprehensive and ambitious development plan. This paper gives account of the first sea trials experience involving a fleet...
As autonomous underwater vehicles universally establish themselves as invaluable tools to provide unprecedented results in a variety of scientific, industrial and naval scenarios, the focus of development is gradually shifting towards considering the operation of multiple cooperating vehicles. There is widespread consensus on that despite the added complexity of having to operate several vehicles,...
The development of effective control architectures for Intervention AUVs (I-AUV) is a very challenging task due to the inherent complexities of the environment and the necessity of the vehicle to come into contact with underwater structures without closed-loop supervision. Despite this, both the scientific and industrial communities are keen supporters of the development of I-AUV technology owing...
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