Laser Sound Technique for the Remote Control of Underwater Oceanographic Instrumentation
Consideration is given to the physical basis for the design of a remote control system based on the transformation of a powerful light pulse to sound at the sea surface. Such a system needs no actual sound source in the water and can even be used from aircraft. The system has evident advantages with respect to optical systems in terms of the potential for data transmission down to depths of several kilometers. Algorithms for processing signals of pulse-position modulation are described that are used in an experimental, optoacoustic, digital communication system. Results of tests of the optoacoustic communication channel, where information was transmitted along an experimental track in the White Sea, are presented. The principle factors that influence the efficiency of digital data transfer, via a channel with optoacoustic signal transformation at the sea surface, are analyzed.
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Document Type: Research Article
Publication date: March 1, 2004
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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