Design Recipes for FPGAs, 2nd Edition

Chapter 9

Digital Filters

Abstract

An important part of digital or computing systems that interface to the “real /world” of sensors and analog interfaces is the ability to process sampled data in the digital domain. This is often called Sampled Data Systems (SDS) or defined as operating in the Z-domain. Most engineers are familiar with the operation of filters in the Laplace or S-domain where a continuous function defines the characteristics of the filter and this is the digital domain equivalent to that.

Keywords

Digital filters

Sample data systems

Z domain

9.1 Introduction

An important part of digital or computing systems that interface to the “real/world” of sensors and analog interfaces is the ability to process sampled data in the digital ...