自适应能量检测器及在失配信号检测中的应用(英文)

被引：4

作者：

刘维建

王利才

狄源水

简涛

谢谠

王永良

机构：

[1] 空军预警学院

[2] 部队

来源：

雷达学报 | 2015年 / 4卷 / 02期

关键词：

自适应能量检测器(AED); 广义似然比; Rao检测器(GLRT); 信号失配; 可调检测器; Wald检测器;

D O I：

暂无

中图分类号：

TN911.23 [信号检测与估计];

学科分类号：

摘要：

自适应能量检测器(AED)是一种信号导向矢量完全未知时有效的检测器,最早根据广义似然比(GLRT)准则得到。该文首先分析了AED一些重要特性。指出AED与根据Rao准则和Wald准则得到的检测器相同,并得到了其精确的统计分布,根据该统计分布进而较容易地推导出AED解析的检测概率(PD)和虚警概率(PFA)。其次利用AED设计了一种信号失配情形下的参数可调检测器。与现有的参数可调检测器相比,新检测器对失配信号的检测具有更好的灵活度。此外,对于匹配信号,新检测器具有更高的检测概率。该可调检测器的这些功能通过调节两个标量参数实现,两个参数被称为可调参数。

引用

页码：149 / 159

页数：11

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