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  • Nuno Cruz, Anı́bal Matos, +5 authors Emı́lio Brogueira Dias
  • 2003
— The goals, technical challenges, and activities of the project PISCIS – Multiple Autonomous Underwater Vehicles for Coastal and Environmental Field Studies – are reviewed in the context of the activities of the I. INTRODUCTION The future of humanity is deeply related to the quality of the bodies of water of the planet, and to the maintenance of their(More)
—In this paper we investigate the creation of a heterogeneous underwater network with static and mobile assets cooperating together in coordinated missions using acoustic links. Each underwater device combines communication, networking, and sensing capabilities, and cooperates with the other devices to accomplish a given task. The flexibility and capability(More)
—In opposition to the surface, no common solution is available for localization of active objects underwater. Typical solutions use acoustics as a means to implicitly measure ranges or angles and consequently determine the position of a transmitter. If the receivers are synchronized among themselves, the position of the transmitter can be estimated based on(More)
— In this paper, we address the current developments of the " PISCIS " project. We focus on the experimental results from recent operational missions with an AUV in a estuarine environment. Besides describing mission planning and logistic details, we also present tools for oceanographic data processing and visualization. This will be demonstrated with some(More)
Height mapping of shallow water areas is an important task for many commercial and scientific applications like river navigability, infrastructure maintenance or natural resource monitoring. The use of an autonomous boat presents several advantages that ease the use of synthetic aperture images to create three-dimensional topographic maps through(More)