有源滤波与惯性滤波方法的综合应用

Application of Active Filter and Digital Filter Methods

针对无源滤波、有源滤波方法对噪声信号去除能力的不足,提出一种新的有源滤波和惯性滤波相结合的滤波方法.分析了由电器元件组成的无源RC滤波器和有源RC滤波器;阐述了惯性滤波的方法及其函数,进行了对污染信号的仿真实验,将无源RC滤波、有源RC滤波及有源RC滤波与惯性滤波结合的方法进行了比较.结果表明,有源RC滤波与惯性滤波结合的滤波方法明显优于前两种滤波方法,而且结构简单,操作方便,效果较好,并降低了算法复杂度,达到比较理想的滤波效果.

To improve the performance of impulse noise reduction, a new synthetic method based on active RC filter and digital filter was proposed. Firstly, active RC filter and passive RC filter composed of electrical element are analyzed. Secondly, the digital filter method is introduced. Thirdly, the new synthetic method was introduced to get the optimal solution to reduce noise. Simulation results demonstrate that our proposed method is obviously better than active filter and nassive filter. The composition and algorithm are simnle and widelv used.