Some Possible Propagation-Associated Constraints on ELF Communications.
Abstract
The first phase of a study directed toward determining the effects of the propagation medium on a possible ELF communications system was completed. A review of current theory and of the small amount of appropriate experimental information available shows that a large degree of uncertainty must be resolved before it can be considered that the characteristics of ELF propagation, even under simple, idealized ionospheric conditions, are understood. Likely extremes of propagation-associated uncertainties in ELF communications reliability and the probable occurrence of bidirectional propagation were considered. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 14, 1971
- Accession Number
- AD0727571
Entities
People
- Donald R. Uffelman
- Edwin L. Althouse
- John R. Davis
Organizations
- United States Naval Research Laboratory