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| 斜视滑动聚束SAR成像的ECS算法 | |
| 引用本文： | 韩冰,张永军,刘佳音,张问一.斜视滑动聚束SAR成像的ECS算法[J].中国科学院研究生院学报,2012,29(5):674-680. |
| 作者姓名： | 韩冰 张永军 刘佳音 张问一 |
| 作者单位： | 1. 北京市遥感信息研究所,北京100192;中国科学院空间信息处理与应用系统技术重点实验室,中国科学院电子学研究所,北京100190 2. 北京市遥感信息研究所,北京,100192 3. 中国科学院空间信息处理与应用系统技术重点实验室,中国科学院电子学研究所,北京100190 |
| 摘 要： | 建立典型滑动聚束SAR(合成孔径雷达)斜视成像模型.在考虑不同方位目标回波信号多普勒空变性的情况下,详细分析两步算法方位滤波恢复滑动聚束SAR方位欠采样信号的原理.对结合两步算法和传统CS算法的ECS算法进行了在斜视成像模型下的修正.针对滑动聚束工作模式的特点,讨论其中关键处理参数的选择问题,给出算法的处理流程.最后,用计算机仿真实验验证了方法的有效性. |
| 关 键 词： | 合成孔径雷达 滑动聚束 斜视模型 ECS算法 |
ECS algorithm for squint sliding spotlight SAR imaging |
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| HAN Bing , ZHANG Yong-Jun , LIU Jia-Yin , ZHANG Wen-Yi.ECS algorithm for squint sliding spotlight SAR imaging[J].Journal of the Graduate School of the Chinese Academy of Sciences,2012,29(5):674-680. | |
| Authors: | HAN Bing ZHANG Yong-Jun LIU Jia-Yin ZHANG Wen-Yi |
| Institution: | 1 Beijing Institute of Remote Sensing Information,Beijing 100192,China;2 Key Laboratory of Technology in Geo-spatial Information Processing and Application System,Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China) |
| Abstract: | A squint imaging model for typical sliding spotlight SAR is proposed.Considering the azimuth space-variant characteristic of Doppler parameters,the basic rationale and the implementation of azimuth data filtering are analyzed.The ECS algorithm,which combines the two-step approach and the traditional CS algorithm,is amended within the squint imaging model.In addition,the choice of its pivotal processing parameters is discussed in detail.Finally,the algorithm is validated by computer simulation. |
| Keywords: | SAR sliding spotlight squint model ECS algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |