ELF/VLF (Extremely Low Frequency/Very Low Frequency) Long Path Pulse Program for Antennas of Arbitrary Elevation and Orientation.

Abstract

A computer program designed to handle pulse propagation problems when the propagation channel is the earth-ionosphere waveguide, and intended for use in the elf/vlf bands, is presented. The program is intended for use with laterally homogeneous channels. Allowance is made for transmit and receive antennas of arbitrary elevation and orientation. Mode data as a function of frequency from a waveguide program are required inputs to the present program. The mode data are interpolated by using cubic splines, and the requisite integrals are treated numerically by means of the fast Fourier transform.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1983
Accession Number
ADA133876

Entities

People

  • J. A. Ferguson
  • L. R. Hitney
  • R. A. Pappert

Tags

Communities of Interest

  • Air Platforms
  • Counter WMD
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Atmospheric Sciences
  • Carrier Frequencies
  • Communication Systems
  • Computer Programs
  • Computers
  • Crystal Structure
  • Electric Fields
  • Elevation
  • Frequency Shift
  • Jet Propulsion
  • Military Research
  • Navy
  • Physics Laboratories
  • Plastic Explosives
  • Radio Frequency
  • Square Waves
  • Waveforms

Fields of Study

  • Engineering
  • Physics

Readers

  • Approximation Theory.
  • Defense Acquisition Program Management
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering