论文部分内容阅读
本文评述了无限脉冲响应(IIR)和有限脉冲响应(FIR)数字滤波器的基本设计技术,重点放在推导IIR滤波器传递函数的各种模—数变换方法,以及设计FIR滤波器的窗口法和频率取样法。接着介绍了采用递归和非递归网络结构以硬件来实现滤波算法。采用Intel 2920信号处理机来说明数字滤波的四种基本操作(输入/输出,加法/减法,乘法和单位延时)的工程实现。最后还列出了其它类似处理机的主要特性。
This article reviews the basic design techniques for Infinite Impulse Response (IIR) and Finite Impulse Response (FIR) digital filters, with emphasis on the derivation of various A / D transforms for the IIR filter transfer function and the windowing method for designing FIR filters And frequency sampling method. Then introduced the use of recursive and non-recursive network hardware to implement the filtering algorithm. Intel 2920 signal processor to illustrate the four basic digital filtering operations (input / output, addition / subtraction, multiplication and unit delay) of the project. Finally, the main features of other similar processors are also listed.