MATLAB平台下数字微分信号提取研究

从工程实际出发，介绍了应用某型数字滤波器对控制系统中数字微分电路中产生的微分信号进行滤波，并结合死区、惯性等非线性环节，改善数字微分信号品质的方法，为验证所设计方法的准确性,在MATLAB平台下所设计的系统进行了数字仿真，并给出了仿真结果，该方法原理简单、方便、便于工程应用。

Research of Extracting the Digital Differential Signal Based on MATLAB

This paper introduces how to use a certain type of the digital filter to filter the differential signals generated by the digital differential circuit of the control system, and the way to improve the quality of the digital differential signals by some non-linear link such as dead zone and inertia. In order to testify the accuracy of the method, we simulated the designed digital system and give the result. This method is proved to be simple, convenient and easy to be put into practice.