A Comparative Study of RCS Computation Codes

Abstract

This paper reports the results of an ongoing study between BAE Systems, U.K., and DSO National Laboratories, Singapore, into the accuracy, performance and capabilities of computational electromagnetics (CEM) codes. For the purpose of this paper, we will report two of the selected test cases, a re-sized NASA almond, a generic missile and the COBRA inlet. The first test object is a (fictitious) generic missile. It provides a test problem for benchmarking the performance of CEM codes on geometries containing real world deficiencies, such as thin bodies and sharp corners. The long missile has a trapezoidal body cross-section with planform sweep angles of 55 . A boat-tail at the rear obscures the exhaust. The intake, not shown for RCS calculation purposes, is assumed to be conformal. The nose tip is sharp to avoid spherical scatter. The overall length, width and height of the missile are 5.9m, 2.3m and 0.7m, respectively.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA447415

Entities

People

  • Alan Keen
  • Andrew Thain
  • Ang T. Wah
  • Chia T. Tong
  • David Rowse
  • Lim K. Hwee
  • Matthew Amos
  • Neil Pegg
  • Ou S. Philip
  • Yar K. Heng

Organizations

  • Defence Science Organisation

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Agreements
  • Backscattering
  • Computational Science
  • Computations
  • Diffraction
  • Frequency
  • Information Operations
  • Mathematical Analysis
  • Mathematics
  • Nose Tips
  • Polarization
  • Scattering
  • Singapore
  • United Kingdom
  • Wave Phenomena
  • Wireless Communications

Readers

  • Aerodynamics/Aeronautics.
  • Computational Modeling and Simulation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering