RADIO WAVE INTERACTION USING GYRO-WAVES.
Abstract
Wave interaction produced in the lower night-time E region by extraordinary gyro-waves was studied for powers up to 500 kW into a circularly polarized array of 40 dipoles. Accurate values of the energy loss coefficient, the electron relaxation time and the electron collision frequency at heights of 85 km in the mesopause and 69 km in the D region were obtained. The electron density profile at the base of the night-time E region was deduced from the variation of the time constant of impressed modulation with frequency of the disturbing wave and is found to be stratified when the analysis is made using the Sen and Wyller M. I. theory. Wave interaction records for the daytime D region were obtained with continuous variation of the transmission time of the disturbing pulse from well ahead of the wanted pulse to just before the return of the wanted echo. Phase-height patterns of partial reflections from the D region were observed, on occasions, to exhibit a remarkable degree of phase coherence. Magneto-ionic formulae for the propagation of gyrowaves and accurate new Q.L. formulae with wide application under non-deviating conditions are given without derivation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 17, 1965
- Accession Number
- AD0627052
Entities
People
- C. S. Gopala K. Setty
- Ian A. Bourne
- Reginald A. Smith
- Robert G. Loch
- Timothy N. R. Coyne
Organizations
- University of New England