引用本文: | 仇晓兰,程遥,高铭,焦泽坤,周良将,丁赤飚. 机载多维度SAR误差分析与成像自配准处理方法[J]. 雷达科学与技术, 2021, 19(5): 571-582.[点击复制] |
QIU Xiaolan, CHENG Yao, GAO Ming, JIAO Zekun, ZHOU Liangjiang, DING Chibiao. Error Analysis and Auto-Registration Imaging Method for Airborne Multidimensional Space Joint-Observation SAR[J]. Radar Science and Technology, 2021, 19(5): 571-582.[点击复制] |
|
摘要: |
随着机载SAR技术发展,在同一架飞机上可以同时安装多个波段的全极化SAR载荷,形成机载多维度SAR系统。中科院空天院牵头研制了一部机载多维度SAR系统,并采用统一的频率源作为基准,以保证不同波段SAR之间在时间、相位方面的一致性,开展了数据获取实验。本文分析了该机载多维度SAR在采样延迟、方位时间和运动补偿等方面的误差,并提出了一致性校正和成像处理的方法,实现了无需后续图像匹配的成像自配准。机载多维度SAR实验数据处理结果表明,多波段成像自配准精度达到1个像素以内,为后续多维度SAR数据联合分析提供了良好的基础。 |
关键词: 多维度SAR 机载SAR SAR成像 多波段SAR 多极化SAR |
DOI:DOI:10.3969/j.issn.1672-2337.2021.05.014 |
分类号:TN957.52 |
基金项目:国家自然科学基金(No.61991421, 62022082) |
|
Error Analysis and Auto-Registration Imaging Method for Airborne Multidimensional Space Joint-Observation SAR |
QIU Xiaolan, CHENG Yao, GAO Ming, JIAO Zekun, ZHOU Liangjiang, DING Chibiao
|
1.National Key Lab of Microwave Imaging Technology, Beijing 100190, China;2. Key Laboratory of Intelligent Aerospace Big Data Application Technology, Suzhou 215124, China;3. Suzhou Aerospace Information Research Institute, Suzhou 215124, China;4. Qilu Aerospace Information Research Institute, Jinan 250132, China;5. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China;6.6. University of Chinese Academy of Sciences, Beijing 100049, China
|
Abstract: |
|
Key words: multidimensional space joint-observation SAR (MSJosSAR) airborne SAR SAR imaging multi-band SAR multi-polarized SAR |