A Simulation of the Swell-Induced Magnetic Vector in a Shallow Sea.

Abstract

A method for the generation of a realistic representation of an ocean parameter is outlined. The particular parameter chosen is the swell-induced magnetic field vector in a shallow sea. The method can be applied to other parameters such as ambient acoustic pressure, and velocity field noises. Starting from a periodic representation of the swell-induced magnetic field, the simulation of the random time behavior of the parameter is obtained by amplitude modulation of a superposition of these periodic functions. This superposition is designed to produce a function with a frequency range comparable to the swell frequency band. The modulation is applied intermittently at random instants of time. This approximation of the three Cartesian components of the swell-induced magnetic field has been calculated for the purpose of providing a background noise signal for a test of a proposed signal analysis scheme. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1971
Accession Number
AD0724656

Entities

People

  • Patrick N. Carlton

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Amplitude Modulation
  • Background Noise
  • Demographic Cohorts
  • Frequency
  • Frequency Bands
  • Magnetic Fields
  • Modulation
  • Noise
  • Periodic Functions
  • Simulations
  • Stratified Fluids

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.