Digital Signal Processing: World Class Designs

Chapter 2. Digital Filters

Most introductory texts on DSP are very similar. Every author seems compelled to demonstrate that they can still derive the fundamental equations of DSP—never mind that you don’t need to see these derivations! In this introduction to DSP, the author’s stated goal is a genuine introduction without going into the usual derivations and examples. It’s a refreshing approach. The text does a good job of quickly explaining the essential ideas without any fuss. If you want the derivations and more examples, the author provides plenty of references.The chapter introduces the most basic principles of DSP, starting with the difference between analog and digital processing. It then moves on to sampling, anti-aliasing filters, ...