Broadband monostatic RCS and ISAR computation of large and deep open cavities

Kedi Zhang, Chao Fu Wang, Jian Ming Jin

Research output: Contribution to journalArticle

Abstract

A hybrid algorithm that combines the finite-element time-domain (FETD) method and generalized scattering matrix (GSM) technique is proposed to efficiently compute the broadband monostatic radar cross section (RCS) of a large and deep open cavity. The formulation and implementation for the numerical modal analysis of arbitrary cross sections and the FETD method equipped with complex frequency-shifted perfectly matched layers for transient simulations are presented. The broadband monostatic RCS is evaluated using a broadband GSM obtained by the FETD solutions. Several examples are presented to demonstrate the accuracy and efficiency of the proposed hybrid FETD-GSM algorithm for broadband monostatic RCS computation and inverse synthetic aperture radar imagery of large and deep open cavities.

Original languageEnglish (US)
Article number8371218
Pages (from-to)4180-4193
Number of pages14
JournalIEEE Transactions on Antennas and Propagation
Volume66
Issue number8
DOIs
StatePublished - Aug 2018

Keywords

  • Cavity scattering
  • complex frequency-shifted perfectly matched layers (CFS-PML)
  • finite-element time-domain (FETD) method
  • generalized scattering matrix (GSM)
  • inverse synthetic aperture radar (ISAR)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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