"I'll just say that the future of electronics is DSP, and with this book you will not be left behind." (xii)

My response: DSP is still in its infancy, and there is a lot of potential to grow and organize. With this book, you will not be left too far behind.

Since this book is a popular choice for learning DSP, my comments address DSP in general.

Introductory DSP is a hard subject on which to write a textbook. Think Algebra I. It was the most confusing math class in my secondary education, even though I did end up with A+++. You can't just write the field axioms [various transforms and their properties] and expect students to understand them. You have to explain, and it can get really verbose. A half-hearted attempt to justify its study would do a serious disservice to its actual importance. It can spell a disaster if the author doesn't have a full grasp of the subject material.

_Understanding Digital Signal Processing_ (2004) by Lyons does a pretty good job of explaining the concepts. If you are patient, you will learn many techniques for optimizing your filter designs. It also has some useful points of data analysis, for those experimentalist folks, how to improve SNR, resolution of frequency peaks, etc.

But come on, bring in more technology! We are no longer in the era of Cauchy and Riemann. I appreciate your explicit calculations, but would prefer short codes. Surface plots on z-plane are nice. The whole design process in DSP should have some standardized software, just as in analog circuits (SPICE) and digital VLSI layout (Magic).

The book lacks good organization, especially toward the end. It tends to be a collection of topics, rather than a cohesive story. Modular arithmetic should not be an afterthought, but should be emphasized from the very beginning.

In the end, this book is only an introduction. Because it does its job and DSP is so important, I give the book 4 stars.

Modern, up-to-date dsp info, this second edition is a must have.
The "Tricks" chapter is outstanding.

I wouldn't be adding much to other reviews.

A good teacher can make a challenging subject accessible. This is THE book that proves it. It is a very well written introduction/reference to a field that is generally made scary by those who teach it. Any beginning electrical engineer who feels interested in DSP but doubts whether he/she is cut out for it, should read this book. It will dispel their apprehensions.

I first got hold of the "Chinese copy" of this book in paperback. I liked the book so much that I bought the hardcover real McCoy so I could pay my proper respects to the author and avoid the poor paper and ink bleed-through of the paperback version. It is one of a half dozen books on the subject that I really value.

Unlike some abstract mathematical treatments of the subject, Richard Lyons really connects with the guy who needs to make it happen on the bench. It is loaded with relevant examples and clear figures. I recommend it as a reference for the DSP practitioner and as a first class tutorial.

Thank you, thank you, thank you, to Richard Lyons for "Understanding
Digital Signal Processing", both editions. I had the great pleasure to
use and learn from the 1st edition about 5 years ago. At that time, I
had the overwhelming urge to convey my appreciation for the wonderful
work. Now that the 2nd edition is out, there is even more reason to
express how much I enjoyed and still enjoy those works.

In particular, the topics are spot on (eg, I needed to learn about CIC
Decimation filters), but most importantly, the exposition is so very
clear and so easy to understand: each step in the progression is made
obvious -- no "and then the magic happens" or "left as an exercise to
the reader" for the important stuff.

The result is an EXCELLENT EXPOSITION. The care and the craft of
carefully showing the intermediate steps makes it real and concrete.
And it is done with a beautiful balance of intuition, observation,
analysis, and math. Why sling equations around when a simple graph
makes things clear? The equations are there, but the pictures are the
teaching tools. Other books discuss the topics. Richard Lyons's books
illuminate the topics.

I'm pleased to be able to purchase these books, and happy that Richard
is being rewarded (getting royalties, for he is DSP royalty) for his
achievements.

I purchased this book because I found myself needing to do some digital signal processing and the FFT gives me anxiety. This book was an excellent and clear introduction to the basics and helped me to develop a much better understanding of the analysis. It's written in a clear style and assumes only very basic knowledge, in fact, I think you could understand much of it without even knowing calculus. I found the author's geometric exposition of aliasing to be particularly helpful.

I give the book 5 stars, but the potential reader should be aware that the book is serves as an introduction only. In the course of my analysis I discovered that some other "tricks" were necessary that could only be found in a more advanced DSP book. So, it might be helpful to have a more comprehensive reference at your side when it comes time to actually process your signals.

Modern, gentle, readable, practical, serious, complete. So many other DSP books drown in their own mathematics, or gloss over subjects confusing to the author. The introduction to Hilbert transforms is worth the price of the entire book. Required reading for professional DSP programmers.

Modern, gentle, readable, practical, serious, complete. So many other DSP books drown in their own mathematics, or gloss over subjects confusing to the author. The introduction to Hilbert transforms is worth the price of the entire book. Required reading for professional DSP programmers.

This is a fabulous introduction to DSP, by far the best I have ever read. It explains concepts without throwing equations and math at the reader. The tips and tricks section is also great and I have already found some useful ones. While not providing the depth of a reference book I will always have it on my shelf for when I truly need to understand a topic.

As I was told by my instructor about this book, and it is true, this is a very good book about DSP. I actually bought a lot of DSP books before, but this one is the best, I strongly recommend it.

I used this book in conjunction with proakis and manolakis.The book may lack the mathematical rigour but provides one of the finest introduction to DSP.I used it very often during my coursework and then turned to the difficult sections of proakis,the material there was then more revelatory. The fourth chapter on FFT is a case in point,Cooley Tukey radix algorithms become a lot easier to pick up from proakis after having gone through this book.Though many might disagree at having this as a text for a course because of its distinctly informal appraoch yet it remains a valuable companion and for someone picking up the threads of DSP this should surely be one of the first choices amongst others.Strongly recommended.

I am an engineer who has read many books, good and bad, obfuscating and illuminating, and concise and lengthy. This is the best by far on the complex (double entendre intentional) subject of DSP. His appendices alone are worth the price of the book. I wish every course on DSP used this text.

If you are considering studying digital signal processing for the first time, I would strongly suggest studying this book in conjunction with the Schaum's outline on digital signal processing, and then going on to a more formal text, such as "Digital Signal Processing: Principles, Algorithms and Applications" by Proakis. This book uses and explains the required background mathematics, with instructive diagrams shown throughout. The author also bothers to explain to the reader the "whys" of digital signal processing. For example, the book even takes the time to explain to the reader the reason that you would want to filter digitally in the first place. All of the basics are covered, including the discrete Fourier Transform, Finite and Infinite Impulse Response filters, the Fast Fourier Transform, and a unique chapter on digital signal processing tricks including data windowing tricks, frequency translation without multiplication, and real-time DC removal. Particularly helpful is that filter design methods are broken down algorithmically into numbered steps with the associated equations. Complete design examples of these methods are also shown to hammer home the concept. Throughout the book, the author assumes the audience is an engineer that, in the end, wants to use this information to build something useful, not to sit through one derivation after another.

I'm an electrical engineer to whom DSP does not come naturally. Most books on DSP (and I have bought a few) tend to gloss over key explanations when going through DSP theory. This book not only avoids that but also does a good job of explaining the concepts. Of all the DSP books I've read, this one is the best, and you can't beat the price!

Have you ever tried to study DSP but get intimidated with all the math equations and cryptic explanations?! With Lyons' book, you are not going to have these problems. Lyons' beautifully explains DSP "concept" without going to unnecessary mathematical details. There is still a lot of math in this book, but all of them is presented from practical point of view and only when needed. It teaches you enough basic DSP so when you need to learn advanced DSP concept from other books, you won't be intimidated!