Two computer models are presented, one for short-range and one for long-range propagation of acoustic signals through an underwater channel from a transmitter to a receiver. In the short-range model, the received signal is due to a direct path (steady component) and a random path (diffused component) that could be the result of boundary scattering. For the long-range case, the received signal is the superposition of a number of time-delayed, randomly propagated components arriving by different paths. Both models assume perfect transmitter-receiver synchronization but use realistic channel time delays. They demonstrate the time-varying characteristics of underwater acoustic channels and are used in simulations to evaluate the performance of the detection technique.


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    Title :

    Underwater acoustic channel models for 4800 b/s QPSK signals


    Additional title:

    Modelle für einen akustischen Unterwasserkanal für QPSK-Signale mit 4800 b/s


    Contributors:
    Falahati, A. (author) / Woodward, B. (author) / Bateman, S.C. (author)

    Published in:

    Publication date :

    1991


    Size :

    9 Seiten, 23 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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