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基于三阶多项式傅里叶变换的SAR地面加速运动目标参数估计与成像

周辉 赵凤军 杨健

周辉, 赵凤军, 杨健. 基于三阶多项式傅里叶变换的SAR地面加速运动目标参数估计与成像[J]. 电子与信息学报, 2016, 38(4): 919-926. doi: 10.11999/JEIT150679
引用本文: 周辉, 赵凤军, 杨健. 基于三阶多项式傅里叶变换的SAR地面加速运动目标参数估计与成像[J]. 电子与信息学报, 2016, 38(4): 919-926. doi: 10.11999/JEIT150679
ZHOU Hui, ZHAO Fengjun, YANG Jian. SAR Accelerating Moving Target Parameter Estimation and Imaging Based on Three-order Polynomial Fourier Transform[J]. Journal of Electronics & Information Technology, 2016, 38(4): 919-926. doi: 10.11999/JEIT150679
Citation: ZHOU Hui, ZHAO Fengjun, YANG Jian. SAR Accelerating Moving Target Parameter Estimation and Imaging Based on Three-order Polynomial Fourier Transform[J]. Journal of Electronics & Information Technology, 2016, 38(4): 919-926. doi: 10.11999/JEIT150679

基于三阶多项式傅里叶变换的SAR地面加速运动目标参数估计与成像

doi: 10.11999/JEIT150679

SAR Accelerating Moving Target Parameter Estimation and Imaging Based on Three-order Polynomial Fourier Transform

  • 摘要: 该文主要针对加速运动目标的参数估计及成像问题,推导了加速度目标的SAR回波频谱,分析了回波相位三次项估计和补偿对运动参数估计和SAR成像的必要性。提出一种利用Hough变换估计距离走动率和径向速度、相位补偿法校正距离徙动效应,并基于三阶多项式傅里叶变换(LPFT)对三次相位估计的新方法。利用Hough变换,在不明显增加计算量的前提下,达到加速运动目标的运动参数精确估计和精确聚焦成像的目的。最后通过仿真数据验证了该算法的有效性。
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出版历程
  • 收稿日期:  2015-06-04
  • 修回日期:  2015-10-09
  • 刊出日期:  2016-04-19

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