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TALISMAN-innovative tool using time varying channel model to evaluate performances of an acoustic link

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3 Author(s)
G. Lapierre ; GESMA, Brest, France ; C. Le Brun ; C. Viala

This paper describes the development in progress of a simulation tool to model acoustic digital communication over time-varying channels. Based on a modular structure, this tool is constituted by a description of an emission, channel and reception part. Physical parameters characterize the time varying channels by integration of static parameters (kind and form of sea surface or sea bed) and variable ones (celerity, receiver moves...). This software is suitable for testing all configurations (provided rays propagation is available) and signal processing techniques for message recovery and is able to deal with time variant impulse response. The performance of acoustic link could be evaluated on the one hand from a statistical point of view by simulation of representative series of symbols. On the other hand, the quality of the link can be visualized by transmission of pictures, sounds or text files. The results are suitable by conventional tools (eye-pattern, I-Q constellations, BER, SER or display of decoded symbols)

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OCEANS, 2001. MTS/IEEE Conference and Exhibition  (Volume:4 )

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