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《Journal of University of Chinese Academy of Sciences》 2015-01
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Polar format algorithm for multi-mode airborne SAR imaging

LIU Longzhu;WANG Yanfei;Institute of Electronics,Chinese Academy of Sciences;University of Chinese Academy of Sciences;  
A high efficiency processing method for mode switch is proposed based on the requirements of airborne synthetic aperture radar( SAR). The features of the mode switch from stripmap to spotlight are well analyzed,and the precise echo signal model during the mode switch is established. By combining the processing steps by means of motion compensation,the polar format algorithm( PFA) is used for the multi-mode imaging. The processing results before and after the mode switch can be shared. Hence the processing efficiency is improved and hardware memory is reduced,which makes the method highly suitable for real-time imaging. Simulation results confirm the validity of the proposed method and show high efficiency.
【Fund】: 国家自然科学基金(61101201)资助
【CateGory Index】: TN957.52
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 Tang Yu①② Wang Yan-fei① Zhang Bing-chen① ①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China) ②(Graduate School of the Chinese Academy of Sciences, Beijing 100039, China);A Study of Sliding Spotlight SAR Imaging Mode[J];Journal of Electronics & Information Technology;2007-01
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 WU Yong-jun1,WU Xian-liang2(1.Department of Microwave,Electric Engineer Institute,Hefei 230037,China;2.Key Lab.of Intelligent Computing and Signal Processing,Anhui University,Hefei 230039,China);A general equivalent monostoatic RD algorithm for bistatic translational invariant SAR imaging[J];Journal of Anhui University(Natural Sciences);2009-05
2 XIE Yi-zhuang1,ZHU Bo-cheng1,WANG Jing-hua2(1.School of Electronics Engineering and Computer Science,Peking University,Beijing 100871,China;2.The 5th Research Institute,China Aerospace Science and Technology Corporation,Beijing 100094,China);System Structure Design of Spaceborne SAR Real Time Imaging Processing[J];Acta Armamentarii;2010-S2
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4 GUO Kun-yi1,SHENG Xin-qing1,TANG Bo2(1.Center for Electromagnetic Simulation,School of Information Science and Technology,Beijing Institute of Technology,Beijing 100081,China;2.School of Communication and Information,University of Science and Technology Beijing,Beijing 100083,China);ISAR Imaging Simulation Based on Time-Frequency Transform for Maneuvering Targets[J];Transactions of Beijing Institute of Technology;2009-02
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【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 Tang Yu①② Wang Yan-fei① Zhang Bing-chen① ①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China) ②(Graduate School of the Chinese Academy of Sciences, Beijing 100039, China);A Study of Sliding Spotlight SAR Imaging Mode[J];Journal of Electronics & Information Technology;2007-01
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