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.
本文提出了一种新型同步检波器，用子带滤波器取代了传统同步检波器中的低通滤波器。
This paper proposes a novel synchronous detector, which use wavelet filter instead of traditional low pass filter.
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.
这种采用锁相技术、同步检波的原理，降低了整个系统的成本，提高了灵敏度，并使得载波信号与调制信号完全达到同步。
The application of phase-locked and synchronous detection reduce the cost of the whole system and improve the sensitivity. Carrier signal and modulation signal achieve entirely synchronous too.
由准同步视频检波的特点及其存在的问题引出锁相环（ PLL）完全同步视频检波电路。
The PLL full synchronization video detector circuit is educed by feature and troubles of quasi-synchronization video detector.
由准同步视频检波的特点及其存在的问题引出锁相环（ PLL）完全同步视频检波电路。
The PLL full synchronization video detector circuit is educed by feature and troubles of quasi-synchronization video detector.
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