Accession Number : ADP006384

Title :   Aspects of Radar Cross-Section Calculation for Targets of Complex Structure,

Corporate Author : HOCHSCHULE DER BUNDESWEHR HAMBURG (GERMANY F R)

Personal Author(s) : Weiland, O. ; Wendiggensen, J.

Report Date : SEP 1991

Pagination or Media Count : 12

Abstract : Minimizing the Radar Cross Section (RCS) of a new warship, it is important to determine the expected RCS in the phase of design because of high development costs. Furthermore it is desirable to identify design dependent scattering centers and analyse their mode of action. This is probably done most effectively by a graphical representation of the scattering mechanisms on a 3- dimensional drawing of the target itself. The paper summarizes the development of a computer code that combines graphical representation methods with well established theoretical techniques to predict the RCS for targets of complex structure. The tool is based on physical optics, physical theory of diffraction, ray tracing and it accounts for multiple shadowing and scattering up to triple bounce. The method of component technique using primitives is applicable to electrically large bodies and the calculation is limited to the monostatic case for perfectly conducting surfaces. Object coherence is used to reduce computation time during the solution of the hidden surface problem.

Descriptors :   *RADAR CROSS SECTIONS, *SHIPS, *TARGET DETECTION, COHERENCE, COMPUTATIONS, COMPUTERS, COSTS, DIFFRACTION, OPTICS, PHASE, RADAR, RAY TRACING, SCATTERING, STRUCTURES, SURFACES, TARGETS, THEORY, TIME, ELECTRIC FIELDS, MAGNETIC FIELDS, MILITARY EQUIPMENT.

Subject Categories : Active & Passive Radar Detection & Equipment
      Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE