Application of Computer Techniques to the Prediction of Underwater Sound Propagation,
NAVY ELECTRONICS LAB SAN DIEGO CALIF
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The efficient use of the Navys increasingly complex sonar systems depends on a detailed knowledge of the behavior of the acoustic energy contained in the underwater acoustic paths which they employ. Once the behavior of the acoustic energy is understood then operational prediction in terms of equipment and environmental parameters becomes possible. In trying to obtain an objective understanding of the nature of the propagation of acoustic energy in the convergence zone and the surface channel paths, much effort has been devoted to the prediction of intensity fields. This report discusses 1 an acoustic intensity program for estimating convergence zone propagation loss using ray theory 2 an acoustic intensity program for estimating propagation loss associated with surface channels using normal mode theory 3 work at NEl summarizing information on the oceanographic variables pertinent to these intensity computations.
- Acoustic Detection and Detectors