智能化高精度脉宽数字滤波电路的设计

在信号的传输过程中,噪音信号不可避免地会干扰正常信号.如何对混合信号进行信噪分离,是目前业界普遍关注和研究的问题.针对高频方波信号的信噪分离问题,提出了智能化脉宽数字滤波的技术方案,并设计了一种实用的脉宽数字滤波电路,消除了测量信号中的尖峰干扰成分.实践证明：该电路能有效地实现高频方波信号与尖峰脉冲干扰信号的信噪分离.

Design of Intelligent High-accuracy Pulse Width Digital Filtering Circuit

In the process of signal transmission,noisy signals interfere with normal signals unavoidably. At present, the problem popularly focused on and studied in industry is how to separate signals and noise for mixed signals. In accordance with separation of signal and noise for high-frequency square wave signals, the technical strategy of intelligent pulse width digital filtering is proposed,a practical pulse width digital filtering circuit is designed to eliminate the peak interference in measuring signals. The practice proves that this circuit is effective for separation of high-frequency square wave signals and peak pulse interference signals.