Accession Number : ADA270386

Title :   Overview of Selected Underwater Acoustic Propagation Models,

Corporate Author : SCIENCE APPLICATIONS INTERNATIONAL CORP MCLEAN VA

Personal Author(s) : Dozier, L. B. ; Cavangh, R. C.

Report Date : MAY 1993

Pagination or Media Count : 161

Abstract : The Advanced Environmental Acoustic Support (AEAS) Program; is the Navy's Advanced Development focus for Environmental/Acoustic (EVA) products used for system development/deployment and operational support. Among the more important and visible EVA products are the sound transmission models (often referred to as TL or transmission loss models), which have over the past twenty years made dramatic strides not only in technical capabilities but also in credibility. Because of the popularity of the EVA models throughout the Navy, AEAS and other projects make day-to-day decisions about these models, such as: which model is best for a given environment, how fast is it likely to run, what computer resources are required, what kind of accuracy is expected, who else uses the model, how does it treat the bottom, fluctuations, etc. This 'notebook' was prepared to help transmission model users (including model developers, fleet personnel, wargamers, etc.) answer such questions and make informed decisions.

Descriptors :   *ACOUSTIC DETECTION, *UNDERWATER ACOUSTICS, *ANTISUBMARINE WARFARE, SOUND TRANSMISSION, ACOUSTIC WAVES, WAVE PROPAGATION, SONAR, MODELS, GEOACOUSTICS, TRANSMISSION LOSS, OCEANS, ADIABATIC CONDITIONS, EIGENVALUES, FAST FOURIER TRANSFORMS, COMPUTER PROGRAMS, REFRACTION, FINITE ELEMENT ANALYSIS, RAY TRACING, SIGNAL PROCESSING.

Subject Categories : Acoustic Detection and Detectors
      Undersea and Antisubmarine Warfare

Distribution Statement : APPROVED FOR PUBLIC RELEASE