Convergence Zone Prediction Models with Programs for Use on HP-67 and HP-97 Programmable Calculators.

Abstract

Convergence zone (CZ) prediction models are developed based on acoustic ray tracing theory as applied to linearly segmented sound velocity profiles (SVP). The models were developed into three calculator programs, two for CZ range predictions under different source and receiver depth conditions and one for CZ gain and transmission loss (TL) predictions. The performance of the models as programmed on Hewlitt-Packard HP-67 or HP-97 programmable calculators was compared to the Fast Asymptotic Coherent Transmission (FACT) model which is based on similar but more elaborate theory and which is designed for use on large digital computers. Agreement of the calculator programs with the FACT model is fairly good when conditions are within the design limitations of the programs and environmental conditions are not unusual. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1979
Accession Number
ADA072050

Entities

People

  • Richard L. Badger

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Agreements
  • Atlantic Ocean
  • Attenuation
  • Calculators
  • Computers
  • Convergence
  • Convergence Zones (Sonar)
  • Data Storage Systems
  • Depression Angles
  • Digital Computers
  • Gain
  • Losses
  • Ocean Basins
  • Ray Tracing
  • Transmission Loss
  • Underwater Sound
  • United States Naval Academy

Fields of Study

  • Physics

Readers

  • Computer Science.
  • Wave Propagation and Nonlinear Chaotic Dynamics.