Fast Encapsulating Domain Decomposition scheme for the analysis of 2D large arbitrarily shaped open-ended cavities

Moti Zelig*, Ehud Heyman, Amir Boag

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We introduce the fast Encapsulating Domain Decomposition (EDD) scheme for the analysis of radar returns from arbitrarily shaped, elongated open-ended cavities. The scheme is demonstrated here for the 2D-TM case only. The EDD is a hybrid spatial-spectral domain decomposition scheme where the cavity is decomposed into segments along its axis, and the fields on the coupling cross-sections between segments are represented spectrally while those on the cavity's walls are represented spatially. This reduces the computational complexity per segment from O(N3) to O(MN2), where N is the number of cross-sectional unknowns and M is the number of wall unknowns per segment, satisfying M<<N, since we construct the segmentation step to be small compared with the cross section.

Original languageEnglish
Title of host publication2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Pages389-393
Number of pages5
DOIs
StatePublished - 2008
Event2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008 - Eilat, Israel
Duration: 3 Dec 20085 Dec 2008

Publication series

NameIEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings

Conference

Conference2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Country/TerritoryIsrael
CityEilat
Period3/12/085/12/08

Keywords

  • Computational complexity
  • MoM
  • Open-ended cavity (OEC)
  • RCS
  • Spectral expansion
  • UWB signature

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