一类数字信号N级采样滤波整形电路研究

Study on A Kind of N-class Digital Signal Filtering and Shaping Circuit

摘要:

提出一类数字信号N级采样滤波整形电路,该电路包括N级信号采样电路、采样信号状态比较电路、输出判决电路三部分。该电路在信号采样输出时,通过信号前后间的关系来判断信号的输出结果,避免了毛刺噪声被当作有用信号输出。该方案对信号传输过程中的毛刺噪声,特别是抖动频繁的毛刺噪声具有较好的滤波效果,可广泛应用于数字电路系统、PLD等系统设计中。

Abstract:

A kind of N-class digital signal filtering and shaping circuit,which includes the N-class signal sampling circuit,sampling signal state comparison circuit and the output decision circuit,was proposed.When sampling signal to output,the circuit determines the output signal from the relationship between the signals to avoid outputting the burr noise as useful signals.The program has a very good filtering effect for eliminating the burr noise,especially the frequently jittering noise in the process of signal tr...