Underwater acoustic channel models for 4800 b/s QPSK signals |
| |
Authors: | Falahati A. Woodward B. Bateman S.C. |
| |
Affiliation: | Dept. of Electron. & Eng., Loughborough Univ. of Technol.; |
| |
Abstract: | 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 |
| |
Keywords: | |
|
|