High-Frequency Asymptotics For The Radar Cross-Section Computation Of A Prolate Spheroid With High Aspect Ratio

Keywords

Electromagnetic diffraction; high frequency asymptotics; parabolic wave equation; Strongly elongated body

Abstract

The problem of high-frequency diffraction by elongated bodies is discussed in this paper. The asymptotics are governed by the elongation parameter, which is the ratio of the longitudinal wave dimensions of the body to its cross-section. The cases of axial incidence and that of incidence at a grazing angle to the axis are considered, and the asymptotics of the far field amplitude are developed. Comparisons with numerical results for a set of test problems show that the leading terms of the new asymptotics provide good approximation with respect to the rate of elongation in a uniform manner. Effects of strong elongation on the RCS are discussed.

Publication Date

1-1-2015

Publication Title

IEEE Transactions on Antennas and Propagation

Volume

63

Issue

1

Number of Pages

336-343

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TAP.2014.2368114

Socpus ID

84920831343 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84920831343

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