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高压电器  2014 

抑制局部放电信号中周期性窄带干扰的共振稀疏分解方法

, PP. 89-93

Keywords: 局部放电,窄带干扰,品质因子,共振稀疏分解,随机干扰

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Abstract:

为了从窄带干扰背景中有效提取局部放电信号,提出一种抑制周期性窄带干扰的共振稀疏分解方法。利用窄带干扰信号与局部放电信号品质因子的不同,在基于信号共振稀疏分解理论的基础上,实现窄带干扰和放电脉冲的有效分离。该方法能在有效抑制窄带干扰的同时,削弱随机干扰。仿真和实测信号的处理结果验证了该方法的可行性和有效性。

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