A modified ACCA-CFAR method with local adaptive threshold is proposed for SAR image detection based on ACCA-CFAR in this paper, in which the K-distribution is used to describe the clutter. First the parameter of K-distribution is estimated, secondly, the local ODV (Ordered Data Variability) ...
该文在ACCA-CFAR(Automatic Censored Cell Averaging-CFAR)的基础上提出了一种以K分布对SAR图像杂波建模的局部自适应ACCA-CFAR目标检测算法.该算法首先估计局部窗口的 K分布参数,然后根据参数确定局部ODV(Ordered Data Variability)门限,进而完成背景像素筛选,最后做出检测判决.文中证明了ODV门限与局部统计模型的参数有关...