ELECTROMAGNETIC PULSE PROPAGATION IN A DISTURBED TERRESTRIAL WAVEGUIDE.
Abstract
Previous papers which treat pulse propagation (with special reference to the nuclear pulse) assume the ionosphere to be 'normal.' Thus, a theoretical model of the ionosphere has been employed which represents undisturbed conditions. This paper extends this propagation analysis to a disturbed condition resulting from the ionizing radiation of nuclear debris spread over a large area. The effect of the debris on the transforms for the propagation medium together with the detailed dispersion of a particular pulse are considered. The lowering of the ionosphere reflection height at low frequencies causes shorter propagation times for the pulses reflected from the ionosphere. The effect causes considerable change in the form or shape of the observed composite pulse at great distance from the source. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1966
- Accession Number
- AD0648002
Entities
People
- J. Ralph Johler