Effect of Powerful Oblique HF Waves on Ionospheric D-Layer Absorption
Abstract
A simple model of D-layer ionospheric heating in the presence of strong, high frequency (HF) radio waves is used to predict the anomalous, nonlinear wave absorption due to collisional and recombination effects induced by the indirect signal. It is found that little anomalous absorption occurs until effective radiated power (ERP) approaches 100 dBW; further increases in power of several dB beyond this 100 dBW threshold are frustrated by a comparable increase in self-induced, one-way absorption. This trend of increasing absorption with increasing transmitter ERP has considerable implications for design of communication or radar systems that use ultra-powerful, high-gain HF transmitters.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 13, 1993
- Accession Number
- ADA268443
Entities
People
- R. M. Bloom