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。
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.
传统的AM调幅信号解调方法是同步检波和包络检波法。
Traditional way of AM signal demodulation is envelope detector or synchronism detector.
在中低速散射通信中，调制解调器的位同步信号通常从含有同步信息的包络中提取。
In the troposcatter communication at low rate or medium rate, a bit synchronization used by modem is usually extracted from the envelope that contains synchronization information.
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