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논문 기본 정보

자료유형
학술저널
저자정보
Jeong-Kyu Kim (Agency for Defense Development) Hyun-Sung Tae (Agency for Defense Development) Min-Gyeong Seo (Agency for Defense Development) Ho-Min Park (Agency for Defense Development)
저널정보
한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.22 No.4
발행연도
2022.7
수록면
509 - 514 (6page)

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초록· 키워드

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Image-based (IB) near-field to far-field transformation (NFFFT) is a useful method for the valid prediction of radar cross sections (RCSs) from short-range monostatic measurements. Many previous studies on the IB NFFFT algorithm have been limited to two-dimensional (2D) measurement cases. In this work, a subdimensional hybrid conversion approach is proposed as a relevant three-dimensional (3D) NFFFT method consisting of the following procedures. First, the spherical-wave information collected through 3D scanning is converted to a cylindrical waveform by applying the 2D circular NFFFT (CNFFFT) method to every vertical subplane (r-θ plane). Then, a horizontal far-field radar image on the x-y plane and an RCS pattern are extracted through direct integration of a 2D focusing operator modified to compensate for a magnitude error through distance approximation during the CNFFFT procedure. The results of a comparative study with direct integration of a 3D focusing operator are presented to show the validity and performance of the proposed method.

목차

Abstract
I. INTRODUCTION
II. FORMULATION
III. RESULTS AND DISCUSSION
IV. CONCLUSION
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