Shape Reconstruction of Three Dimensional Conducting Objects Using Opposition-Based Differential Evolution

Authors

  • Mojtaba Maddahali Department of Electrical Engineering Amirkabir University of Technology, Tehran, 15875-4413, Iran
  • Ahad Tavakoli Department of Electrical Engineering Amirkabir University of Technology, Tehran, 15875-4413, Iran
  • Mojtaba Dehmollaian School of Electrical and Computer Engineering University of Tehran, Tehran, 14395-515, Iran

Keywords:

Inverse scattering, NURBS modeling, opposition-based differential evolution, physical optics approximation

Abstract

In this paper, shape reconstruction of three dimensional conducting objects using radar cross section (RCS) of the scatterer and opposition-based differential evolution is investigated. The shape of the scatterer is modeled with nonuniform rational B-spline (NURBS) surfaces composed of more than one Bezier patches. NURBS are piecewise polynomial with unknown coefficients that are determined in the procedure of shape reconstruction. Opposition-based differential evolution (ODE) is then employed as an optimization tool to find the unknown coefficients. Physical optics approximation is used to predict RCS of the large conducting scatterer in various directions and at multiple frequencies. The effect of noise is also considered in the inverse process.

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References

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Published

2021-08-08

How to Cite

[1]
Mojtaba Maddahali, Ahad Tavakoli, and Mojtaba Dehmollaian, “Shape Reconstruction of Three Dimensional Conducting Objects Using Opposition-Based Differential Evolution”, ACES Journal, vol. 32, no. 01, pp. 93–98, Aug. 2021.

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General Submission