微分跟踪器的研究与应用

针对传统方法从含噪声的信号中提取或恢复原始信号时具有将噪声放大及超调量大等的缺点,将微分跟踪器应用于PID控制器中,得到了原始信号的最佳逼近.利用MATLAB仿真软件在Simu-link中的S函数建立系统模型,将微分跟踪器与P1D控制器结合进行仿真,并与传统PID控制器进行比较.结果表明：微分跟踪器与PID控制器的结合有效地提取了原始信号,能够克服传统PID控制器中微分环节将噪声放大并产生副作用的消极因素,在噪声扰动下体现了较强的抗噪声能力,并且无超调的跟踪原始信号,充分提高了系统的可利用性.

Research and Application of Differential Tracker

Considering.traditional method＇ s shortcomings like the noise amplification and overshoots while extracting the noise or restoring the original signal,the differential tracker （TD） was presented and applied to the PID controller so as to get the best approximation of original signal; and making use of MATLAB simulation software and the S function,the system＇ s Simulink model was established to simulate the combination of TD and PID controller; having it compared with traditional PID controller to show that the combination of TD and PID can extract original signal effectively and overcome aforesaid shortcomings because of its obvious anti-noise and signal-tracking abilities,this can enhance system availability