Nearshore Navigation and Communication Based on Deliberate EM Signals

Abstract

We seek to understand and utilize deliberately produced EM signals in the coastal ocean. Our studies are undertaken to provide a means for communicating with and guiding an autonomous underwater vehicle (AUV) and other autonomous sensor systems, such as moored instruments. We want to include multiple effects in our models, such as environmental noise (e.g., surface waves, breaking waves, magnetotelluric signals), seabed electrical conductivity, variable bottom depth and coastline, and deliberate EM signals. The ultimate goal is to understand these factors well enough to allow for reliably estimating signal-to-noise ratios in planning coastal EM operations.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1999
Accession Number
ADA630765

Entities

People

  • Robert H. Tyler
  • Thomas B. Sanford

Organizations

  • University of Washington

Tags

Communities of Interest

  • Autonomy
  • Sensors

DTIC Thesaurus Topics

  • Autonomous Underwater Vehicles
  • Buried Objects
  • Electrical Conductivity
  • Electrical Grids
  • Environment
  • Extremely Low Frequency
  • Finite Difference Time Domain
  • Frequency
  • Guidance
  • Literature Surveys
  • Load Monitoring
  • Magnetic Fields
  • Navigation
  • Physics Laboratories
  • Surface Waves
  • Three Dimensional
  • Underwater Vehicles

Fields of Study

  • Environmental science

Readers

  • Acoustical Oceanography.
  • Irregular Warfare and Special Operations Cyberspace Operations against Adversarial Threats.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers