Direction-of-Arrival Calculations at VLF/LF (Very Low Frequency/Low Frequency)

Abstract

A modification of an earlier program has been used to calculate direction-of-arrival (DOA) errors due to geomagnetic field effects at San Diego for the following VLF/LF transmitters; Annapolis (21.4 kHz), Lualualei (23.4 kHz), Cutler (24 kHz), Jim Creek (24.8 kHz), and Silver Creek (48.5 kHz). The calculations have been compared with corresponding measurements of Stang and Davis. The program can be used for both laterally homogeneous and inhomogeneous guides and allows for airborne as well as ground transmissions. Essential features of the program are reviewed and a program listing is given.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1989
Accession Number
ADA212620

Entities

People

  • L. R. Hitney
  • R. A. Pappert

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Angle Of Arrival
  • Classification
  • Computer Programs
  • Coordinate Systems
  • Dielectric Permittivity
  • Direction Finding
  • Electric Fields
  • Electromagnetic Wave Propagation
  • Electronics Laboratories
  • Frequency
  • Intensity
  • Magnetic Fields
  • Orientation (Direction)
  • Polyethylene Glycols
  • Security
  • Wave Propagation

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Radar Systems Engineering.
  • Space/Atmospheric Physics.