Using Roughness Textures in Target Modelling - Impact on ISAR Images Calculations of the ZSU 23-4

reportActive / Technical Report | Accession Number: ADA471355 | Open PDF

Abstract:

Tools for electromagnetic simulation, such as SPECRAY EM FERMAT, make RCS and ISAR image computations down to millimetre wavelength possible from the CAD of targets. The higher the frequency is, the greater the influence of the precision and the realism of the CAD models on results are. In millimetre wavelength, whatever the precision of the CAD, the roughness of surface and the flatness of sheets of construction of terrestrial military vehicles cannot be reproduced by the geometry. Nevertheless, a realistic prediction of RCS can be carried out by taking into account the statistical surface qualities, which are superposed, on the deterministic effects of the geometry of the CAD. The calculations carried out on the CAD 600 and 80 kfacets of the ZSU 23-4 illustrate these effects, without degrading the efficiency of computations.

Author(s):
Mametsa, H. J. ; Berges, A. ; Latger, J.
Author Organization(s):
OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES TOULOUSE (FRANCE) DEMR
Descriptive Note:
Conference paper with briefing charts
Supplementary Note:
Presented at the RTO Sensors and Electronics Technology Panel (SET) Specialists' Meeting held in Oberammergau, Germany, 10-12 May 2005 and published in the proceedings of the same as paper 19. See also ADM202152, Millimetre-Wave Advanced Target Recognition and Identification Experiment - MATRIX 2005 (Experience de reconnaissance et d'identification avancees de cibles et ondes millimetriques - MATRIX 2005), RTO-MP-SET-096. The original document contains color images.
Pagination:
0053

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Nato
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited. Nato.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NATO/RTO
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_6_Net Centric; JCA_1.2.7_Experimentation; JCA_6.1_Information Transport; JCA_8_Building Partnerships
Modernization Areas:
Microelectronics
Communities of Interest:
Sensors
Descriptor(s):
*SURFACE ROUGHNESS, *ELECTROMAGNETIC SCATTERING, *RADAR CROSS SECTIONS, *RADAR TARGETS, COMPUTER PROGRAMS, RADAR TARGET POSITION SIMULATORS, COMPUTERIZED SIMULATION, THREE DIMENSIONAL, IMAGE PROCESSING, COMPUTER AIDED DESIGN
Field(s)/Group(s):
Computer Programming and Software, Cybernetics, Active and Passive Radar Detection and Equipment, Target Direction, Range and Position Finding
Keyword(s):
*ISAR(INVERSE SYNTHETIC APERATURE RADAR), ELECTROMAGNETIC MODELLING, COMPUTER CODES, SBR(SHOOTING AND BOUNCING RAYS) TECHNIQUE
Report Date:
2005 May 01
Creation Date:
2007 Sep 12