Accession Number:

ADA010117

Title:

Effect of the Lower Ionosphere on the Propagation of Waves from an ELF/VLF Source in the Magnetosphere.

Descriptive Note:

Interim rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Report Date:

1975-04-28

Pagination or Media Count:

21.0

Abstract:

A modified form of the Smith-Pitteway full-wave program is used, in conjunction with various lower ionospheric profiles, to calculate the propagation characteristics of ELFVLF waves from a source in the magnetosphere. Expressions are developed which give the ratio of the power transmitted into the earths surface to the power incident on the ionosphere as a function of the number of wave hops in the earth-ionosphere waveguide. The wave polarization after each hop is obtained showing a limiting polarization after several hops. Numerical evaluation of these expressions are presented and discussed.

Subject Categories:

  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE