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文档为信噪比的定义,包括平均功率信噪比、瞬时功率(或电压)信噪比和偏移信噪比,并给出详细的定义公式-The definition of the documentation for the signal-to-noise ratio, signal-to-noise ratio of the average power signal-to-noise ratio and offset signal-to-noise ratio of the instantaneous power (or volt
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In a series of papers in recent years new
structures for coherent M-PSK (M-ary Phase Shift Keying)
receivers were suggested. These include structures for carrier
phase detectors for the carrier PLL (Phase Lock Loop),
carrier PLL lock dete
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:提出一种基于对偶树复小波块阈值的信号降噪方法,并将其成功应用于机械故障诊断中。机械设备的振动信号都或多或少地含有噪声,导致弱故障信息的提取一直是故障诊断的难点和热点。提出的降噪方法充分利用对偶树复小波变换的平移不变性和块阈值法的更优估计特性,可以获得比常规的小波降噪方法以及基于常规离散正交小波变换的 NeighBlock 降噪法更高的信噪比, 不仅能有效抑制高斯白噪声, 还能够去除冲击信号中的脉冲噪声。-:A denoising method of block thresholding bas
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