自适应能量检测器及在失配信号检测中的应用(英文)

刘维建 王利才 狄源水 简涛 谢谠 王永良

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自适应能量检测器及在失配信号检测中的应用(英文)

  • 基金项目:

Adaptive Energy Detector and Its Application for Mismatched Signal Detection(in English)

  • Fund Project: Supported in part by National Natural Science Foundation of China (61102169).

  • 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。
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  • 收稿日期:  2014-11-17
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  • 刊出日期:  2015-04-28

自适应能量检测器及在失配信号检测中的应用(英文)

  • 1.  (空军预警学院 武汉 430019)
  • 2.  (93856部队 兰州 730060)
基金项目: 

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。

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