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。
By means of Hilbert transform, the author obtains the signal envelope, and then calculates the demodulation spectrum.
首先利用希尔波特变换解调出信号包络，进而计算出解调谱；
Traditional way of AM signal demodulation is envelope detector or synchronism detector.
传统的AM调幅信号解调方法是同步检波和包络检波法。
Compared with in vitro AM modulation modes, the demodulator adopts the diode peak envelope detector for demodulation.
相对于体外的AM调制方式，解调器采用二极管峰值包络检波进行解调。
Compared with in vitro AM modulation modes, the demodulator adopts the diode peak envelope detector for demodulation.
相对于体外的AM调制方式，解调器采用二极管峰值包络检波进行解调。
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