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基于白化滤波和RBF-KF的变压器局部放电超声波信号提取

open access: yesGaoya dianqi
局部放电(partial discharge,PD)是电力变压器出现绝缘劣化的初始迹象,局部放电信号的及时准确提取对于变压器状态监测具有重要意义。然而,受周期性窄带干扰和白噪声等的影响,传统快速傅里叶变换(fast Fourier transformation,FFT)阈值,小波降噪和奇异值分解(singular value decomposition,SVD)等方法噪声抑制性能较差,难以有效提取PD信息。提出一种基于白化滤波和径向基神经网络联合卡尔曼滤波(radial basis function ...
李利华   +4 more
doaj  

[Analysis of complicating factors in endodontic microsurgery]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Tan X   +9 more
europepmc   +1 more source

[Research progress on cellular senescence and liver diseases]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi
Zhang LT, Hu JM, Wang JW, Li H, Qin YJ.
europepmc   +1 more source

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