Accession Number : AD0718106

Title :   Radio Propagation Effects Due to Ionospheric Waves.

Descriptive Note : Environmental research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Toman,Kurt

Report Date : 03 DEC 1970

Pagination or Media Count : 26

Abstract : Acoustic-gravity waves in the ionosphere create moving, undulating, reflecting surfaces. Overhead passage of such surfaces causes variations of amplitude, phase, and frequency of reflected radio waves. The patterns of these variations change with the characteristics of the reflecting surface. For the study and prediction of these patterns, computer experiments were carried out to simulate the effects of sinusoidal reflecting surfaces on propagating radio waves. The simulated parameters included field strength and path length and its derivative. The results are compared with high-frequency measurements made over an oblique, ionospheric transmission between Ottawa, Canada, and Bedford Mass. (Author)

Descriptors :   (*IONOSPHERIC PROPAGATION, IONOSPHERIC DISTURBANCES), (*MICROBAROMETRIC WAVES, IONOSPHERE), GRAVITY, DOPPLER EFFECT, REFLECTION

Subject Categories : Atmospheric Physics
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE