Modified physical optics algorithm for near field scattering

doi:10.1088/1674-1056/27/11/114102

中国物理B ›› 2018, Vol. 27 ›› Issue (11): 114102-114102.doi: 10.1088/1674-1056/27/11/114102

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Modified physical optics algorithm for near field scattering

Bin Chen(陈彬), Chuangming Tong(童创明)

Air Force Engineering University, Xi'an 710051, China

收稿日期:2018-05-21 修回日期:2018-07-10 出版日期:2018-11-05 发布日期:2018-11-05
通讯作者: Bin Chen E-mail:chen_cem@126.com

Modified physical optics algorithm for near field scattering

Bin Chen(陈彬), Chuangming Tong(童创明)

Air Force Engineering University, Xi'an 710051, China

Received:2018-05-21 Revised:2018-07-10 Online:2018-11-05 Published:2018-11-05
Contact: Bin Chen E-mail:chen_cem@126.com

摘要/Abstract

摘要：

A novel modified physical optics algorithm is proposed to overcome the difficulties of near field scattering prediction for classical physical optics. The method is applied to calculating the near field radar cross section of electrically large objects by taking into account the influence of the distinct wave propagation vector, the near field Green function, and the antenna radiation pattern. By setting up local reference coordinates, each partitioned facet has its own distinct wave front curvature. The radiation gain for every surface element is taken into consideration based on the modulation of the antenna radiation pattern. The Green function is refined both in amplitude and phase terms and allows for near field calculation. The scattered characteristics of the near field targets are studied by numerical simulations. The results show that the approach can achieve a satisfactory accuracy.

关键词: physical optics, scattering, near field

Abstract:

Key words: physical optics, scattering, near field

中图分类号: (Applied classical electromagnetism)

41.20.-q

陈彬, 童创明. Modified physical optics algorithm for near field scattering[J]. 中国物理B, 2018, 27(11): 114102-114102.

Bin Chen(陈彬), Chuangming Tong(童创明). Modified physical optics algorithm for near field scattering[J]. Chin. Phys. B, 2018, 27(11): 114102-114102.

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Modified physical optics algorithm for near field scattering

Modified physical optics algorithm for near field scattering

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