Accession Number : AD0786977

Title :   An Analysis of Two Problems Related to Over-the-Horizon Detection in the HF Band.

Descriptive Note : Technical memo.,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Shotland,Edwin

Report Date : JUL 1974

Pagination or Media Count : 25

Abstract : A 21 -dB discrepancy between theory and experiment concerning Bragg scattering of HF ground waves by a rough sea is analyzed and resolved. In addition, a new and more efficient method of non-dimensionalization is proposed for the quantities of radio propagation in the HF band that could be adopted by all electromagnetic and acoustical wave bands of propagation. It is especially useful in the application of the Norton-Barrick concept of 'basic transmission loss.' (Author)

Descriptors :   *OVER THE HORIZON DETECTION, HIGH FREQUENCY, SEA CLUTTER, ELECTROMAGNETIC WAVE PROPAGATION, RADAR, ELECTROMAGNETIC SCATTERING, RADAR SIGNALS, RADAR CROSS SECTIONS, SCATTERING

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE