| Presentation | 2018-10-12 Evaluation of Range Estimation Accuracy by Wideband Coherent Processing for Sparse Frequency Bands Kazuhiro Watanabe, Manabu Akita, Takayuki Inaba, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Ultra-wideband is becoming available in short range radar, and further higher resolution is expected by utilizing ultra-wideband. In this background, we propose a sparced frequency coherent combining method that achieves high target range estimation accuracy by coherently combining signals of multiple frequency bands separated from each other. The authors have proposed a multi-frequency step CPC(complementary phase code) method that can obtain high range resolution while maintaining the detection distance by narrowband reception. In this paper, we will show methods to coherently combine the signals of each band obtained by the multi-frequency step CPC method by dividing the ultra-wideband into a plurality of separated narrowband sub bands. In the proposal of the method, two combining methods are proposed in consideration of the frequency stability of the radar. The estimation accuracy of the proposed method is evaluated by CRLB and statistical evaluation is performed by computer simulation. Furthermore, a simulation is performed in which the carrier frequency error of the radar is changed, and we consider the effect of carrier frequency error on estimated distance accuracy by both methods. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | coherent processing / sparse frequency bands / high range resolution / stepped multiple frequency CPC method |
| Paper # | SANE2018-49 |
| Date of Issue | 2018-10-05 (SANE) |
| Conference Information | |
| Committee | SANE |
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| Conference Date | 2018/10/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radar signal processing and general issues |
| Chair | Sonosuke Fukushima(ENRI) |
| Vice Chair | Toshifumi Moriyama(Nagasaki Univ.) / Akitsugu Nadai(NICT) |
| Secretary | Toshifumi Moriyama(ENRI) / Akitsugu Nadai(Univ. of Electro-Comm.) |
| Assistant | Ryo Natsuaki(Univ. of Tokyo) / Masato Yamanashi(Mitsubishi Space Software) / Takeshi Amishima(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) | Evaluation of Range Estimation Accuracy by Wideband Coherent Processing for Sparse Frequency Bands |
| Sub Title (in English) | |
| Keyword(1) | coherent processing |
| Keyword(2) | sparse frequency bands |
| Keyword(3) | high range resolution |
| Keyword(4) | stepped multiple frequency CPC method |
| 1st Author's Name | Kazuhiro Watanabe |
| 1st Author's Affiliation | The University of Electro-Communications(EUC) |
| 2nd Author's Name | Manabu Akita |
| 2nd Author's Affiliation | The University of Electro-Communications(EUC) |
| 3rd Author's Name | Takayuki Inaba |
| 3rd Author's Affiliation | The University of Electro-Communications(EUC) |
| Date | 2018-10-12 |
| Paper # | SANE2018-49 |
| Volume (vol) | vol.118 |
| Number (no) | SANE-239 |
| Page | pp.pp.29-34(SANE), |
| #Pages | 6 |
| Date of Issue | 2018-10-05 (SANE) |