Advanced Development Active Model: A Users Guide

Abstract

The Naval Oceanographic and Atmospheric Research Laboratory has developed a numeric model for the prediction of boundary and volume reverberation in shallow-water environments for midfrequency regimes. The model's theoretic foundation is that of the (Naval Research Laboratory) Range Dependent Active System Performance Model. While retaining the theoretic foundation of the NRL model, it was necessary to introduce new algorithms for the computation of the acoustic ray trajectories, and the calculation of the elemental scattering areas used in the prediction of boundary reverberation. The changes were required to implement range-dependent bistatic reverberation and to account for the possibility of strong sound speed gradients in the upper regions of the water column. This technical note serves as a users guide for the Advanced Development Active Model. While the model usually performs without major malfunctions, users should remember that this model is a research and development model.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1992
Accession Number
ADA255614

Entities

People

  • J. K. Fulford

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Bottom Loss
  • Computations
  • Databases
  • Echoes
  • Frequency
  • Geometry
  • Grazing Angles
  • Grids
  • Losses
  • Military Research
  • Ray Tracing
  • Reverberation
  • Shallow Water
  • Standards
  • Statistics
  • Target Echoes
  • Transmission Loss

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation
  • Computer Science.