修正秩非参量检测器在K分布海杂波中的应用

Application of Nonparametric Detectors Based on Modified Rank in K-distributed Sea Clutters

研究了广义符号修正秩检测器和M ann-W h itney修正秩检测器在K分布海杂波中对起伏雷达目标的检测性能,并分别与广义符号检测器和M ann-W h itney检测器的检测性能进行了比较。前两种修正秩检测器是通过设计秩统计量的逆正态得分函数来获得检验统计量,对积累分布函数连续且概率密度函数服从对称分布的数据具有恒虚警性能。

Detectors separately named as Genaralized sign Modified Rank detector and Mann-Whitney Modified Rank detector are studied in this paper. The detectability of this two nonparametric detectors to fluctuating radar echo signals is analyzed and campared in K distributed sea clutter. These two modified rank detectors are achieved by designing the invcrse-norm^l score function of the rank statistics and they are CFAR （Constant False Alarm Rate） in the data with continuous CDF （Cumulative Distribution Function） and PDF（Probability Density Function） symmetric about zero.