THE USE OF AN HF LUNAR REFLECTION CIRCUIT IN THE STUDY OF IONOSPHERIC ELECTRON DENSITY
Abstract
A high-power hf transmitter was used to illuminate the moon at moonrise. The returned signals which have been observed display both the smooth-sphere scattering components and the rough-scatterer components reported previously by observers utilizing the vhf and uhf bands. It is believed that this study represents the first evidence of similar scattering phenomena observed at high frequencies. During most observation periods, the initial appearance of the moon-reflected signal was later than would be expected from considerations of antenna beam structure and ionospheric refraction alone. The received moon echoes were subjected to a high degree of predetection bandwidth narrowing and were analyzed to yield information regarding the possible extent of polarization-rotation undergone by radio waves traversing the ionosphere.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 19, 1963
- Accession Number
- AD0414850
Entities
People
- F. H. Utley
- J. R. Davis
Organizations
- United States Naval Research Laboratory