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singal dection in noise 噪声中的信号检测
This article discusses the security broadcast, the synchronization in every input signal and how to improve the quality of singal in TV Live broadcast.
就电视现场直播中如何保障安全播出、各路信号同步以及保证信号质量等问题进行探讨。
A method by using 8031 single-clip microprocessor to get the syntonical bit information is presented, based on the characteristic of the modulated singal in ascending cosine envelope.
利用升余弦包络调制信号的特点，即基带信号为升余弦波，接收端可以利用这一包络，从中提取定时信息。
The frequency synthesizer is a kind of discrete frequency singal generator with high stability, and it is widely used in communication, radar, apparatus and navigation system.
频率合成器是一种频率稳定度较高的离散间隔型频率信号发生器，广泛应用在通信、雷达、仪器仪表及导航系统中。
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