| Presentation | 2008-08-29 Mitigation of Sidelobe Target Detection by Using Mainbeam Subspace Ryuhei TAKAHASHI, Kazufumi HIRATA, Hisakazu MANIWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | False alarm caused by sidelobe moving targets or clutter residue is serious problem for ground-based or shipboard radar. Especially multiple declarations of false alarm at arbitrary beam directions are much more serious problem for radar operation since it causes degradation of target tracking ability and displaying false information on radar display. In this paper, we proposed a subspace-based method to mitigate sidelobe targets detection. Unlike sidelobe blanker, auxiliary antennas and following receiving channels are not required in this method. In addition to that, this method can be used not only to non-coherent signals but also to coherent signals, emanating from specular multipath for example, without any preprocessing such as spatial smoothing. Principle of proposed method to detect sidelobe targets is to evaluate norm of projected eigenvector of sidelobe subspace onto predetermined mainbeam subspace. Results of computer simulation indicate that the proposed method shows good performance in mainbeam target scenario and sidelobe targets scenario respectively at reasonable SNR for target tracking mode operation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Radar / False Alarm / Sidelobe / Subspace / Sidelobe Blanker |
| Paper # | SANE2008-48 |
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| Conference Information | |
| Committee | SANE |
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| Conference Date | 2008/8/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Mitigation of Sidelobe Target Detection by Using Mainbeam Subspace |
| Sub Title (in English) | |
| Keyword(1) | Radar |
| Keyword(2) | False Alarm |
| Keyword(3) | Sidelobe |
| Keyword(4) | Subspace |
| Keyword(5) | Sidelobe Blanker |
| 1st Author's Name | Ryuhei TAKAHASHI |
| 1st Author's Affiliation | Information Technology R & D Center, Mitsubishi Electric Corporation() |
| 2nd Author's Name | Kazufumi HIRATA |
| 2nd Author's Affiliation | Information Technology R & D Center, Mitsubishi Electric Corporation |
| 3rd Author's Name | Hisakazu MANIWA |
| 3rd Author's Affiliation | Information Technology R & D Center, Mitsubishi Electric Corporation |
| Date | 2008-08-29 |
| Paper # | SANE2008-48 |
| Volume (vol) | vol.108 |
| Number (no) | 197 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |