Accession Number : AD0632915

Title :   RADAR RETURN FROM VEHICLES IN THE IONOSPHERE.

Descriptive Note : Research paper,

Corporate Author : INSTITUTE FOR DEFENSE ANALYSES ARLINGTON VA RESEARCH AND ENGINEERING SUPPORT DIV

Personal Author(s) : Rand,S. ; Albini,F.

Report Date : NOV 1965

Pagination or Media Count : 35

Abstract : Approximate expressions are derived for radar (backscatter) cross sections of the wakes of vehicles in the ionosphere. Vehicle speed is assumed to be much greater than ion thermal speed but much less than electron thermal speed. It is shown that, under broadside incidence conditions, the large region of mild electron depletion behind the vehicle can give rise to backscatter cross sections approaching 100 square meters. The orientation of the velocity vector with respect to the local geomagnetic field is also shown to be important. (Author)

Descriptors :   (*SATELLITE TRACKING SYSTEMS, *IONIZATION), (*RADAR CROSS SECTIONS, IONIZATION TRAILS), SPACECRAFT, TRAJECTORIES, IONOSPHERE, IONIZATION, RADAR, BACKSCATTERING, SPECTRUM SIGNATURES

Subject Categories : Active & Passive Radar Detection & Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE