Accession Number : ADA293228

Title :   Point-Scatterer Model for a Soviet T-62 Tank at 95 GHz.

Descriptive Note : Final rept. Jan-Dec 91,

Corporate Author : ARMY RESEARCH LAB ADELPHI MD

Personal Author(s) : Goldman, Geoffrey H.

PDF Url : ADA293228

Report Date : APR 1995

Pagination or Media Count : 33

Abstract : A simulation program based on an isotropic point-scatterer model was used to reconstruct 95- GHz, monopulse radar measurements of a T-62 Soviet tank taken with the target on a rotating turntable at a 600 radar depression angle and at a range of 95 m. Scattering centers were generated from three-dimensional inverse synthetic aperture radar (ISAR) images, which had a resolution of approximately 0.23 m in downrange, 0.21 m in crossrange, and 0.1 m in elevation. Model- and measurement-based radar cross-section (RCS) and azimuth and elevation aimpoint calculations were compared for 10 target azimuth intervals over 360 deg. The agreement and the precision of measured and simulated values were evaluated. Simulation values approached an asymptotic level of maximum agreement with measured values when target models were used in the simulation program that contained a minimum of 40 scattering centers and an average of 68 scattering centers. This resulted in an agreement in the RCS mean values of approximately 0.04 + or - 0.6 dB and in the mean azimuth and elevation aimpoint values of less than 0.01 + or - 0.11 deg.

Descriptors :   *MEASUREMENT, *MONOPULSE RADAR, *RADAR TARGETS, *SURFACE TARGETS, *TANKS(COMBAT VEHICLES), USSR, SIMULATION, SCATTERING, COMPUTATIONS, MODELS, MILLIMETER WAVES, TARGETS, ENEMY, VALUE, AIMING, AGREEMENTS, MEAN, ELEVATION, AZIMUTH.

Subject Categories : Active & Passive Radar Detection & Equipment
      Target Direction, Range and Position Finding
      Combat Vehicles

Distribution Statement : APPROVED FOR PUBLIC RELEASE