Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO Radar
Target localization using a frequency diversity multiple-input multiple-output (MIMO) system is one of the hottest research directions in the radar society. In this paper, three-dimensional (3D) target localization is considered for two-dimensional MIMO radar with orthogonal frequency division multi...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2017/4171452 |
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| author | Xingxing Li Dangwei Wang Xiaoyan Ma |
| author_facet | Xingxing Li Dangwei Wang Xiaoyan Ma |
| author_sort | Xingxing Li |
| collection | DOAJ |
| description | Target localization using a frequency diversity multiple-input multiple-output (MIMO) system is one of the hottest research directions in the radar society. In this paper, three-dimensional (3D) target localization is considered for two-dimensional MIMO radar with orthogonal frequency division multiplexing linear frequency modulated (OFDM-LFM) waveforms. To realize joint estimation for range and angle in azimuth and elevation, the range-angle-dependent beam pattern with high range resolution is produced by the OFDM-LFM waveform. Then, the 3D target localization proposal is presented and the corresponding closed-form expressions of Cramér-Rao bound (CRB) are derived. Furthermore, for mitigating the coupling of angle and range and further improving the estimation precision, a CRB optimization method is proposed. Different from the existing methods of FDA-based radar, the proposed method can provide higher range estimation because of multiple transmitted frequency bands. Numerical simulation results are provided to demonstrate the effectiveness of the proposed approach and its improved performance of target localization. |
| format | Article |
| id | doaj-art-35500739e68445a298f33465d7b8693f |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-35500739e68445a298f33465d7b8693f2025-02-03T01:23:01ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772017-01-01201710.1155/2017/41714524171452Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO RadarXingxing Li0Dangwei Wang1Xiaoyan Ma2Air Force Early Warning Academy, Wuhan 430019, ChinaAir Force Early Warning Academy, Wuhan 430019, ChinaAir Force Early Warning Academy, Wuhan 430019, ChinaTarget localization using a frequency diversity multiple-input multiple-output (MIMO) system is one of the hottest research directions in the radar society. In this paper, three-dimensional (3D) target localization is considered for two-dimensional MIMO radar with orthogonal frequency division multiplexing linear frequency modulated (OFDM-LFM) waveforms. To realize joint estimation for range and angle in azimuth and elevation, the range-angle-dependent beam pattern with high range resolution is produced by the OFDM-LFM waveform. Then, the 3D target localization proposal is presented and the corresponding closed-form expressions of Cramér-Rao bound (CRB) are derived. Furthermore, for mitigating the coupling of angle and range and further improving the estimation precision, a CRB optimization method is proposed. Different from the existing methods of FDA-based radar, the proposed method can provide higher range estimation because of multiple transmitted frequency bands. Numerical simulation results are provided to demonstrate the effectiveness of the proposed approach and its improved performance of target localization.http://dx.doi.org/10.1155/2017/4171452 |
| spellingShingle | Xingxing Li Dangwei Wang Xiaoyan Ma Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO Radar International Journal of Antennas and Propagation |
| title | Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO Radar |
| title_full | Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO Radar |
| title_fullStr | Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO Radar |
| title_full_unstemmed | Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO Radar |
| title_short | Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO Radar |
| title_sort | three dimensional target localization and cramer rao bound for two dimensional ofdm mimo radar |
| url | http://dx.doi.org/10.1155/2017/4171452 |
| work_keys_str_mv | AT xingxingli threedimensionaltargetlocalizationandcramerraoboundfortwodimensionalofdmmimoradar AT dangweiwang threedimensionaltargetlocalizationandcramerraoboundfortwodimensionalofdmmimoradar AT xiaoyanma threedimensionaltargetlocalizationandcramerraoboundfortwodimensionalofdmmimoradar |