模拟滤波器到数字滤波器简单变换方法

Research on a Simple Transform from Analogue Filter to Digital Filter

详细研究了数字滤波器的设计方法,根据基本的微分方程,推导了一种设计IIR数字滤波器的变换方法。用该方法设计出数字滤波器,并且与双线性变换法进行比较,结果表明该方法具有结构简单、高效,易于硬件实现等特点。

The methods of design digital filter have been studied in detail. A novel transform derived according to the basic differential equation. The approach has been used to design IIR digital filters in comparison the bilinear transform, the results show that the method is simple and efficient, and it can be implemented by circuit.