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An Efficient Method for the RCS Reduction of Cavities in the Ground Plane

An Efficient Method for the RCS Reduction of Cavities in the Ground Plane

Year:    2025

Author:    Xun Lu

Advances in Applied Mathematics and Mechanics, Vol. 17 (2025), Iss. 1 : pp. 104–122

Abstract

This paper investigates the reduction of backscatter radar cross section (RCS) for cavities embedded in the ground plane. It is established by placing a multilayered radar absorbing material (RAM) at the bottom of the cavities. The minimization of the backscatter RCS is formulated as a bound constrained optimization problem. A new vertical mode expansion method is developed to solve the scattering problem, and it is integrated into the gradient projection method to obtain the optimal composite coating. Numerical examples show that the method we developed is efficient and the backscatter RCS can be significantly reduced.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/aamm.OA-2022-0244

Advances in Applied Mathematics and Mechanics, Vol. 17 (2025), Iss. 1 : pp. 104–122

Published online:    2025-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    19

Keywords:    Vertical mode expansion RCS reduction optimal design gradient projection.

Author Details

Xun Lu