A Simple Formula to Calculate Shallow-Water Transmission Loss by Means of a Least-Squares Surface Fit Technique.

Abstract

A semi-empirical formula TL = 15 log R + (A + B(log f) + C(log f) sq) R + D (in dB) is proposed to express sound transmission loss in shallow water as a function of range and frequency. The four coefficients A, B, C and D are determined from either experimental or model data by the use of a least-squares surface fit and the formula usually gives a standard derivation of the order of a few dB. The formula can be used for studying system performances, sonar range predictions, and as a compact data storage. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1980
Accession Number
ADA091375

Entities

People

  • Ole F. Hastrup
  • Tuncay Akal

Organizations

  • SACLANT ASW Research Centre

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Attenuation
  • Coefficients
  • Defense Planning
  • Experimental Data
  • Frequency
  • Frequency Bands
  • Governments
  • Law
  • Losses
  • Mathematics
  • Military Planning
  • Nato
  • Shallow Water
  • Transmission Loss
  • Two Dimensional
  • Water

Readers

  • Acoustical Oceanography.
  • Calculus or Mathematical Analysis
  • Regression Analysis.