The newmethod(wavelet self-information envelope demodulation, WSED)is proposed in this article forextraction fault features more effective and easier.
为了更有效、更容易地获得故障特征信息，本文建立了小波—自信息包络解调法。
参考来源 - 基于粗糙集理论的旋转机械故障诊断技术Then, envelope demodulation algorithm based on Hilbert transform is applied for fault signals after they are filtered.
采用基于Hilbert变换的包络解调算法对滤波消噪后的信号进行包络解调处理。
参考来源 - 信息融合和贝叶斯网络集成的故障诊断理论方法及实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
According to the character of vibration in reciprocating compressor, the vibration signal was separated from intrinsic frequencies of the system by envelope demodulation method.
考虑到往复式压缩机振动具有振源丰富、信息干扰大的特点，利用包络解调法分离出系统固有频率成分的振动信号。
By envelope demodulation of the resonance in a range of high frequency caused by the shock of low frequency, the resonance demodulation technique can effectively extract the shock features.
共振解调技术对低频冲击的高频共振波形进行包络检波，可以有效地提取低频冲击特征。
All circuits of demodulating strong signal envelope are adopted in previous TV's video demodulation, synchronizing demodulations are widely used in video demodulation in the later integrated TV set.
早期电视机的视频检波均采用大信号包络检波电路，后来在集成化的电视机中，视频检波又都采用同步检波方式。
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