An advanced ray‐tracing numerical method is coupled to an ionospheric plasma transport code to model the self‐consistent propagation of an obliquely incident high‐frequency (HF) beam in the ionosphere. An HF radar propagation scenario is presented as an application. During the daytime, a density increase in the lower ionosphere is predicted causing the defocusing of the incident HF beam.

No abstract

No abstract

No abstract

No abstract

UNCLASSIFIED 4 3 9 2 4 4 DEFENSE DOCUMENTATION CENTER FOR SCIENTIFIC AND TECHNICAL INFORMATION CAMERON STATION. ALEXANDRIA. VIRGINIA UNCLASSIFIED NOTICE: When government or other drawings, specifications or other data are used for any purpose other than In connection with a definitely related government procurement operation, the U. S. Government thereby incurs no responsibility, nor any obligation whatsoever; and the fact that the Government may have formulated, furnished, or in any way supplied the said drawings, specifications, or other data Is not to be regarded by implication or otherwise as in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use or sell any patented invention that may in any way be related thereto.

No abstract