Accession Number:

ADA336968

Title:

RCS Validation of a Missile-Shaped Target at W-Band

Descriptive Note:

Final rept. Oct 96-Oct 97

Corporate Author:

ARMY RESEARCH LAB ADELPHI MD

Personal Author(s):

Report Date:

1998-01-01

Pagination or Media Count:

36.0

Abstract:

In a comparison of measured, simulated, and theoretical calculations of radar cross section RCS, the radar target was a simple missile shape a cylinder with hemispherical ends. For the measurements, the target was rotated on a turntable from 5 to 365 deg in azimuth, and its RCS was measured with a W-band frequency agile instrumentation radar. Clutter and noise in the measured RCS data were reduced by spatial filtering. For modeling the target geometry, the ACAD advanced computer aided design geometric modeling program was used to create both an IGES initial graphics exchange specification and a facet model. For modeling the RCS, three high frequency prediction codes were used Xpatch, CADDSCAT, and NcPTD, as well as a point scatter model. Various methods were used to process and simulate the target returns, depending upon the aspect angle. Agreement between the measured and simulated bandwidth averaged RCS values depended on the portion of the target that dominated the radar return agreement was close for radar returns dominated by returns from the hemispherical ends of the target. However, for aspect angles near broadside to the target for which the cylindrical part of the target dominated the returns, RCS measurements suggested an interaction between the target and the pylons supporting it.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE