Computer Models of Underwater Acoustic Propagation.
Abstract
This report summarizes data on those models of propagation loss in the field of underwater acoustics that have been converted into an automated computer code capable of being executed by someone other than the originator for a wide variety of problems. Currently no single model exists that is adequate for all applications. As a result, a large number of models, each with its own domain of validity (in many cases difficult to define precisely), have been developed. The models discussed here can be segregated into range-independent and range-dependent categories. Range-independent models assume that the ocean is cylindrically symmetrical, that the speed of sound is an arbitrary function of only the depth (z) coordinate, and that all boundaries are parallel with the range (r) coordinate. These models, discussed in section 1, are in a fairly complete state of development, as evidenced by the concern with reducing computer execution time and memory without significantly sacrificing accuracy. The range-dependent models, discussed in section 2, allow the speed of sound to be an arbitrary function of either two or three spatial coordinates, and boundaries need not be parallel. Their state of development is not as complete. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 02, 1980
- Accession Number
- ADA082380
Entities
People
- Frederick R. Dinapoli
- Roy L. Deavenport
Organizations
- Naval Underwater Systems Center