Accession Number:

ADA220457

Title:

Measurement and Analysis of the Electromagnetic Scattering of a Geodesic Array of Triangular Trihedral Corner Reflections

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1990-03-01

Pagination or Media Count:

242.0

Abstract:

This thesis investigated the EM scattering of a geodesic array consisting of a cluster of 20 trihedral corner reflectors held together by hinges. This target was designed to provide a large radar return with a spatial coverage greater than that due to an array of 8 corner reflectors. RCS, or echo area, was chosen as a means of investigating the EM scattering of a scaled model version of geodesic array. The RCS of the individual components of the geodesic array i.e. the single corner reflectors and the RCS of the geodesic array were measured using a continuous wave measurement technique. For the purpose of comparison, the RCS of an 8 corner reflector array was also measured. In order to gather as much spatial scattering information as possible, a unique target support mount was designed, constructed, and used to collect conical cut RCS patterns. Measured RCS patterns of the targets are included in the appendixes. A comparative analysis between the measured RCS of the geodesic array and that of the 8 corner reflector array was performed to determine how well the geodesic array met its designed goal. It was found that in almost all cases, the measured spatial RCS coverage for the geodesic array was equal to or better than the measured spatial RCS coverage of the array of 8 corner reflectors. The only exception was for broadside incidence for which the geodesic array spatial coverage was slightly less. Radar decoys.

Subject Categories:

  • Radar Countermeasures
  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE