| Presentation | 2018-01-26 RCS Near-field to Far-field Transformation Hirokazu Kobayashi, Andrey Osipov, Chihyuan Chu, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, it is profoundly demanded to measure radar cross-section (RCS) for electrically large objects. When the scattering pattern of RCS is measured, the RCS is usually evaluated in the far-field region. If measurement facility employs radio anechoic camber in order to avoid unnecessary reflected wave, therefore, it is sometime occurred to deviate from the condition of the far-field region according to the size or the measuring frequency. In a case that an object under test is especially an electrically large object such as airplane, automobile, the RCS accurate measurement becomes to be considerably difficult. The near-field to far-field transformation (NFFFT) is developed for this case. Because RCS is two-way measurement, which is different from antenna one-way, RCS NFFFT theory employs image-based transformation algorithm of all several existing NFFFT methods. In this paper, we present three-dimension cylindrical scanning NFFFT formulation, which is extended to be improved by introducing the focusing compensation. Furthermore, we discuss transformed measurement results due to the developed software package named KOSIP and some notes for measurement. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | radar cross-section (RCS)near-field measurementfar-field transformationNFFFTcylindrical scanMATLAB codeKOSIP |
| Paper # | SANE2017-108 |
| Date of Issue | 2018-01-18 (SANE) |
| Conference Information | |
| Committee | SANE |
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| Conference Date | 2018/1/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagasaki Prefectural Art Museum |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Positioning, navigation, Radar and general |
| Chair | Sonosuke Fukushima(ENRI) |
| Vice Chair | Toshifumi Moriyama(Nagasaki Univ.) / Akitsugu Nadai(NICT) |
| Secretary | Toshifumi Moriyama(Mitsubishi Electric) / Akitsugu Nadai(ENRI) |
| Assistant | Manabu Akita(Univ. of Electro-Comm.) / Ryo Natsuaki(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Space, Aeronautical and Navigational Electronics |
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| Language | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | RCS Near-field to Far-field Transformation |
| Sub Title (in English) | Theory and Application |
| Keyword(1) | radar cross-section (RCS)near-field measurementfar-field transformationNFFFTcylindrical scanMATLAB codeKOSIP |
| 1st Author's Name | Hirokazu Kobayashi |
| 1st Author's Affiliation | Osaka Institute of Technology(OIT) |
| 2nd Author's Name | Andrey Osipov |
| 2nd Author's Affiliation | DLR(DLR) |
| 3rd Author's Name | Chihyuan Chu |
| 3rd Author's Affiliation | National Taipei University of Technology(NTUT) |
| Date | 2018-01-26 |
| Paper # | SANE2017-108 |
| Volume (vol) | vol.117 |
| Number (no) | SANE-403 |
| Page | pp.pp.129-134(SANE), |
| #Pages | 6 |
| Date of Issue | 2018-01-18 (SANE) |