一种基于脉冲压缩的机载条带SAR重叠子孔径实时成像算法

詹学丽 王岩飞 王超 刘碧丹

詹学丽, 王岩飞, 王超, 刘碧丹. 一种基于脉冲压缩的机载条带SAR重叠子孔径实时成像算法[J]. 雷达学报, 2015, 4(2): 199-208. doi: 10.12000/JR14126
引用本文: 詹学丽, 王岩飞, 王超, 刘碧丹. 一种基于脉冲压缩的机载条带SAR重叠子孔径实时成像算法[J]. 雷达学报, 2015, 4(2): 199-208. doi: 10.12000/JR14126
Zhan Xue-li, Wang Yan-fei, Wang Chao, Liu Bi-dan. Research on Overlapped Subaperture Real-time Imaing Algorithm for Pulse Compression Airborne Strip SAR System[J]. Journal of Radars, 2015, 4(2): 199-208. doi: 10.12000/JR14126
Citation: Zhan Xue-li, Wang Yan-fei, Wang Chao, Liu Bi-dan. Research on Overlapped Subaperture Real-time Imaing Algorithm for Pulse Compression Airborne Strip SAR System[J]. Journal of Radars, 2015, 4(2): 199-208. doi: 10.12000/JR14126

一种基于脉冲压缩的机载条带SAR重叠子孔径实时成像算法

doi: 10.12000/JR14126
基金项目: 

国家自然科学基金(61101201)资助课题

详细信息
    作者简介:

    詹学丽(1976–),女,中国科学院电子学研究所,博士,主要研究方向为SAR成像理论及其信号处理等. 王岩飞(1963–),男,中国科学院电子学研究所,博士生导师,研究员,主要研究方向为微波成像雷达系统及其理论、数字信号处理等. 王超(1983–),男,中国科学院电子学研究所,博士,主要研究方向为SAR成像理论及其信号处理等. 刘碧丹(1980–),女,中国科学院电子学研究所,助理研究员,主要研究方向为SAR成像理论及其信号处理等.

    通讯作者:

    詹学丽

Research on Overlapped Subaperture Real-time Imaing Algorithm for Pulse Compression Airborne Strip SAR System

  • 摘要: 该文提出了一种基于距离向脉冲压缩体制的机载条带SAR重叠子孔径(OSA)实时成像算法,可直接应用于未采用去斜接收技术的条带机载SAR实时成像处理系统。该算法在距离向采用脉冲压缩技术、方位向采用OSA信号处理方法,能够在成像过程中完成距离徙动校正并消除空变相位误差,得到条带模式下的高分辨率图像。首先分析了条带模式SAR几何关系,然后在脉冲压缩体制下建立了回波模型并对成像流程进行了详细的数学推导,最后对运算量、存储量与成像范围进行了计算分析,对点目标数据进行了仿真,利用实时处理平台对原始数据进行了成像,验证了算法的高时效性。

     

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出版历程
  • 收稿日期:  2014-11-05
  • 修回日期:  2015-01-19

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