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基于循环平稳的复调频信号检测性能研究

赵宏钟,付强

Tien Tzu Hsueh Pao/Acta Electronica Sinica（2004）

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Abstract
针对加性色噪声和乘性色噪声联合干扰下的雷达运动目标检测问题进行了研究.首先利用循环平稳信号处理原理,分析了加性噪声和乘性噪声联合干扰下的复调频信号的循环统计特性,在此基础上构造了基于二阶循环矩的检测统计量,推导了检测统计量的输出信噪比与观测噪声统计特性的关系.最后利用Monte-Carlo仿真试验得到检测性能的曲线,并与基于时频分布的Wigner-Hough检测器做了比较,仿真试验进一步验证了本文提出的二阶循环矩检测器性能要优于Wigner-Hough检测器.
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Key words
Cyclic moments,Cyclostationary,Detector,Linear frequency-modulated,Signal-to-noise ratio
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