Three-dimensional Multiple-Input Multiple-Output Radar Imaging Method Based on Integration of Multi-snapshot Images
| Autor: | Tong ZHENG, Libing JIANG, Zhuang WANG |
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| Jazyk: | English<br />Chinese |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Leida xuebao, Vol 9, Iss 4, Pp 739-752 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2095-283X 42129370 |
| DOI: | 10.12000/JR19069 |
| Popis: | To improve the cross-range resolution of three-dimensional (3-D) images obtained along the direction of movement by Multiple-Input Mmultiple-Output (MIMO) radar, a novel MIMO-ISAR 3-D imaging method that combines multi-snapshot images is proposed. This method integrates multiple single-snapshot 3-D images acquired by a planar antenna array during a specific period of observation and extracts the peak slice along the linear fitting direction of the scatterers to construct a new 3-D image. The simulation results demonstrated that the proposed method significantly improves the cross-range resolution of the imaging results along the direction of movement compared with other methods based on single-snapshot 3-D images. Additionally, compared with the classical MIMO-ISAR method based on rearrangement and interpolation, this method is suitable for both fast-moving and slow-moving targets. Moreover, the imaging results are well focused and the side lobes along the direction of movement are effectively suppressed. |
| Databáze: | Directory of Open Access Journals |
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