为了克服开环比较电路因噪声信号引起的多重触发，噪声环境中的比较电路设计宜引入正反馈采用迟滞比较电路。
In case of multiple transitions caused by noise, it is an efficient way to use positive feedback to introduce a small amount of hysteresis when designing comparing circuit.
通过对一个球形信号进行傅立叶正反变换，发现用相位谱恢复的图形轮廓比振幅谱恢复的图形轮廓清晰。
Taking the sphere signal as an example, it is found that the phase spectrum is clearer than the amplitude one in resuming input signal.
针对我国城市道路交通信号控制中的灯色规定和一些常用信号正反两方面的影响因素等进行分析。
Aiming at the practice of traffic signal control in China, this paper analyzes the positive and negative effect of the commonly used traffic signal control designs.
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