A Scattering Center-Based Prediction Method for Shadowing and Two-Body Interactions

Abstract

The electromagnetic interaction between two closely-spaced objects can have a significant impact on the total radar cross section. In this paper, we present a simple approximate method for modeling the two-body interaction by adjusting scattering centers to account for shadowing and diffraction phenomenon. The problem is simplified by replacing the shadowed object with discrete ideal isotropic scatterers corresponding to the object's scattering center model. By applying reciprocity, the Green's function in the presence of the shadowing object is then used to estimate the adjustment to each scattering center due to the shadowing object. The model predictions are compared to rigorous moment method codes as well as to static range RCS measurements to demonstrate the limits of applicability of the current approach.

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Document Details

Document Type
Technical Report
Publication Date
Dec 13, 2010
Accession Number
ADA540439

Entities

People

  • Brian W. Rybicki
  • Douglas M. Koltenuk
  • Joshua L. Wilson
  • Lea E. Johnson

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Aspect Angle
  • Coordinate Systems
  • Diffraction
  • Electric Current
  • Electric Fields
  • Electromagnetic Radiation
  • Geometry
  • Magnetic Fields
  • Measurement
  • Near Field
  • Plane Waves
  • Radar Cross Sections
  • Scattering
  • Simulations
  • Waves
  • X Band

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Computational Modeling and Simulation
  • Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

  • Space
  • Space - Space Objects