Detection in Range-Heterogeneous Weibull Clutter
Detection in Range-Heterogeneous Weibull Clutter
复制标题
范围异质威布尔杂波中的检测
DOI：
10.1109/radar.2007.374239
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Y. Tanik
中科院分区：
文献类型：
--
作者：
U. Doyuran;Y. Tanik
本文研究的是距离非均匀威布尔杂波中的检测问题。非均质性被定义为从一个均匀区域到具有不同尺度和/或形状参数的另一个区域的急剧转变。该方法首先对窗口的均匀性进行测试。如果发现它是异质的，则估计转换点并相应地设置阈值。众所周知，通常的CFAR方法在非瑞利或距离不均匀杂波中工作时，会受到目标掩蔽或虚警率增加的影响。仿真结果表明，该算法在均匀或非均匀的威布尔杂波环境中均有较好的性能，且性能优于已有的方法。
The paper deals with detection in range-heterogeneous Weibull clutter. Heterogeneity is defined as a sharp transition from one homogeneous region to another with a different scale and/or shape parameter. The proposed method, firstly, tests the homogeneity of the window. If it is found to be heterogeneous, the transition point is estimated and the threshold is set accordingly. It is known that usual CFAR methods suffer from target masking or increased false alarm rate when operated in non-Rayleigh or range-heterogeneous clutter. The proposed algorithm is shown to perform well in homogeneous or heterogeneous Weibull clutter environment and yield better performance than commonly known methods.