基于数字阵列雷达的同时多模式SAR 成像体制研究

基金项目:

国家自然科学基金优秀青年基金(61222108)，国家自然科学青年基金(61301292, 61101245) 和中央高校基本科研业务费专项资金(K5051302058, K5051302046)资助课题

Investigation on Multimode SAR Imaging Based on Digital Array Radar

(National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China)

摘要: 数字阵列雷达(Digital Array Radar, DAR)用于合成孔径雷达(Synthetic Aperture Radar, SAR)成像能够同时完成多种成像模式，具有广阔的应用前景。该文首先对DAR 的基本硬件结构和工作原理进行介绍。在此基础上，结合数字波束形成(Digital BeamForming, DBF)技术，提出6 种可同时实现多模式SAR 成像的工作方式，并对各种工作方式给出了相应的新颖的成像模式。此外，以某种新颖的模式为例，给出了其系统设计的详细过程。最后通过仿真实验验证了该成像模式的有效性及正确性。
- 合成孔径雷达(SAR) /
- 数字阵列雷达(DAR) /
- 数字波束形成(DBF) /
- 多模式 /
- 同时
Abstract: Digital Array Radar (DAR) has the ability of simultaneous multimode imaging and has many potential applications. This paper firstly introduces the basic hardware structure and the operation principle of DAR. Combined with the Digital BeamForming (DBF) technique, six operational modes that can be used in multimode Synthetic Aperture Radar (SAR) imaging are proposed, and the corresponding novel imaging modes are produced. Moreover, the design of the novel imaging modes is introduced in detail. The simulation results confirm the efficiency and precision of the imaging modes.
- Synthetic Aperture Radar (SAR) /
- Digital Array Radar (DAR) /
- Digital BeamForming (DBF) /
- Multimode /
- Simultaneous