Accession Number : ADA200327

Title :   The Disk: A Comparison of Electromagnetic Scattering Solutions and Its Use as a Calibration Standard for Bistatic RCS (Radar Cross Section) Measurements.

Descriptive Note : Report for Sep 86-Sep 87,

Corporate Author : ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY

Personal Author(s) : Trott, Keith D

PDF Url : ADA200327

Report Date : Feb 1988

Pagination or Media Count : 27

Abstract : This report compares three solutions for scattering from a perfectly conducting risk. It compares a closed form Physical Optics (PO) solution, a solution found by applying the RADC/BSRCRCS scattering prediction code, and an exact eigenfunction solution. The results are compared for various ka values and incidence angles for both horizontal and vertical polarizations. In addition, this report determined the applicability of the disk as a calibration standard for bistatic radar cross section (RCS) measurements by examining the calibration curve. This curve is a plot of the specular return as a function of bistatic angle. This curve is computed for both horizontal and vertical polarizations at various ka values using the PO and eigenfunction solutions. Results show that PO agrees reasonably well with the PTD and eigenfunction solutions in certain cases. The agreement is particulary good for the calibration curve for a wide range of bistatic angles. (RH)

Descriptors :   *BISTATIC RADAR, *ELECTROMAGNETIC SCATTERING, *RADAR CROSS SECTIONS, ANGLE OF INCIDENCE, ANGLES, BISTATIC DETECTION, CALIBRATION, CODING, CROSS SECTIONS, CURVED PROFILES, EIGENVECTORS, HORIZONTAL ORIENTATION, OPTICS, POLARIZATION, PREDICTIONS, RANGE(EXTREMES), RISK, SCATTERING, SOLUTIONS(GENERAL), VERTICAL ORIENTATION

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE