| Presentation | 2021-12-16 Scattering Cross-Section Synthesis for Multiple Targets Based on Radar Image Takuma Watanabe, Hiroyoshi Yamada, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this study, we propose a radar cross-section (RCS) prediction method for a cluster of multiple targets that combines radar images of a single target. In characterizing an object or a target measured by radar, RCS is an essential physical parameter of the target. The importance of radar technology, such as automotive radar systems for collision avoidance, has continuously grown in recent years, and the demand for RCS measurement and prediction is expected to increase accordingly. As RCS is defined in the far field of a target, direct RCS measurement of an electrically large object in spatially limited indoor facilities is usually infeasible. Therefore, several near-field-to-far-field transformation (NFFFT) techniques have been developed to overcome this limitation. Moreover, RCS measurement of a cluster of multiple targets is required for certain situations. In such cases, in addition to the abovementioned spatial limitation, the cost of manufacturing multiple test objects and repeating similar experiments for different arrangements of the targets must be taken into account. To deal with these problems, we utilize the NFFFT technique based on synthetic aperture radar (SAR) or inverse SAR (ISAR) imaging. First, we measure the backscattering of a single target in the near-field distance and reconstruct the radar image from the measured data. Second, multiple images are created by rotating and transforming the original image such that the target is located at the desired positions. Finally, the created images are coherently synthesized, and the RCS is computed from the synthesized image. Numerical electromagnetic simulations based on the method of moments are used for validating the proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Radar Cross-Section (RCS) / Synthetic Aperture Radar (SAR) / Multiple Targets / Image Reconstruction / Near-Field-to-Far-Field Transformation (NFFFT) |
| Paper # | SANE2021-75 |
| Date of Issue | 2021-12-09 (SANE) |
| Conference Information | |
| Committee | SANE |
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| Conference Date | 2021/12/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Chiba University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radar, Remote Sensing and general issues |
| Chair | Toshifumi Moriyama(Nagasaki Univ.) |
| Vice Chair | Makoto Tanaka(Tokai Univ.) / Takeshi Amishima(Mitsubishi Electric) |
| Secretary | Makoto Tanaka(Univ. of Tokyo) / Takeshi Amishima(ENRI) |
| Assistant | Takayuki Kitamura(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Space, Aeronautical and Navigational Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Scattering Cross-Section Synthesis for Multiple Targets Based on Radar Image |
| Sub Title (in English) | |
| Keyword(1) | Radar Cross-Section (RCS) |
| Keyword(2) | Synthetic Aperture Radar (SAR) |
| Keyword(3) | Multiple Targets |
| Keyword(4) | Image Reconstruction |
| Keyword(5) | Near-Field-to-Far-Field Transformation (NFFFT) |
| 1st Author's Name | Takuma Watanabe |
| 1st Author's Affiliation | Fujitsu Limited(Fujitsu) |
| 2nd Author's Name | Hiroyoshi Yamada |
| 2nd Author's Affiliation | Niigata University(Niigata Univ.) |
| Date | 2021-12-16 |
| Paper # | SANE2021-75 |
| Volume (vol) | vol.121 |
| Number (no) | SANE-306 |
| Page | pp.pp.69-74(SANE), |
| #Pages | 6 |
| Date of Issue | 2021-12-09 (SANE) |