数字信号在处理和传输过程中,由于电路内部的因素或是外界的干扰,会引起噪声污染数字信号,从而导致系统工作的错误和故障,甚至给用户带来不可估量的经济损失,因此消除数字信号中的噪声是非常必要的。本文介绍的数字噪声消除器只要在知道将要处理的数字信号的一些参数,通过选取合适的电路元件数值,即可清除任何数字信号中的噪声。该数字噪声消除器的电原理图见图(a),它主要由消除(噪声)脉冲发生电路(IC_1和IC_2)、消除(噪声)电路(D触发器)以及外围电路等组 Digital signal processing and transmission process, due to internal factors or external interference, will cause noise pollution of digital signals, resulting in system errors and failures, and even bring immeasurable economic losses to users, thus eliminating the number The noise in the signal is very necessary. This article describes the digital noise eliminator as long as the digital signal to be processed to know some of the parameters, by selecting the appropriate value of the circuit components, you can clear any noise in the digital signal. The digital noise eliminator electric schematic diagram (a), it is mainly by the elimination (noise) pulse generating circuit (IC_1 and IC_2), eliminating (noise) circuit (D flip-flop) and peripheral circuits