| 摘要: |
| 介绍了定点、滑动两种聚束SAR方式的工作原理，在此基础上给出了两种聚束SAR方式下的分辨率、测绘带宽、作用距离等指标分析，针对机载合成孔径雷达常规聚束工作模式战技指标，指出目前机载合成孔径雷达聚束SAR模式设计的关键问题，提出了基于定点、滑动聚束两种方式的机载合成孔径雷达聚束SAR模式波束控制设计方法，最后给出了试验验证情况及典型试验结果，研究结果对于机载合成孔径雷达聚束SAR模式设计具有一定指导意义。 |
| 关键词: 机载聚束SAR 定点聚束 滑动聚束 方位波束控制 |
| DOI：10.3969/j.issn.1672-2337.2018.06.007 |
| 分类号:TN959.1+2；TN958 |
| 基金项目: |
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| Design and Experiment of Airborne Spotlight SAR Beam Steering |
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CHEN Kai, SUN Long, JIANG Kai
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The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China
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| Abstract: |
| This paper introduces the working principles of fixed-point spotlight mode and sliding spotlight mode of airborne synthetic-aperture radar (SAR). Based on these two modes, the paper proposes two index systems. A list of commonly used parameters such as resolution, swath width, and distance, are analyzed. According to the technical indexes of SAR conventional spotlight mode, the paper figures out the key problems of SAR mode design. For fixed spotlight mode and sliding spotlight mode, two different beam control design methods are discussed. In the end of this article, the test and experimental results are provided. Such effort will provide a reference for the following research of SAR spotlight mode. |
| Key words: airborne spotlight SAR fixed-point spotlight sliding spotlight azimuth beam steering |
