基于非参估计的局部滑窗双参CFAR目标检测
Modern Defence Technology(2011)
Abstract
针对特定杂波概率模型不能有效的描述SAR图像背景杂波这一问题,提出了一种基于非参估计的局部滑窗双参CFAR目标检测算法。该方法首先用非参估计方法逼近SAR图像局部背景,完成对局部背景的精确建模;在此基础上,理论推导了局部双参CFAR检测算法的阈值,设计了阈值求解的数值算法。对典型目标图像进行实验,结果表明,该方法检测速度较快、精度较高。
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Key words
two-parameter CFAR,image processing,SAR target detection,non-parameter estimation
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