This edition adds extensive new coverage of quadrature signals for digital communications, recent improvements in digital filtering, and much more. It also contains more than twice as many "DSP Tips and Tricks"...including clever techniques even seasoned professionals may have overlooked.
One of the best textbooks I've read. The author's tone is fantastic. Here's an example: "Unfortunately, many authors make a statement like 'and we know that,' and drop [equations] on the unsuspecting reader who's expected to accept these expressions on faith. Assuming you don't have a Ph.D. in mathematics, you may wonder what arithmetic sleight of hand allows us to arrive at [these equations]."
The book is very well balanced. When it explores key equations or identities in detail, it provides intuitive, comprehensive explanations. When it omits proofs, it does so in order to maintain a brisk, interesting pace (also providing references to literature with more information). I imagine one would be hard-pressed to find a better introduction to the subject.
Lots of books are titled, "Understanding..." but this one actually works. I have read what I needed from chapters 1-5, 8 and the layout and explanations are exceptional to the point where a nincompoop like me can understand what is going on.
Anybody interested in DFTs, complex numbers, the imaginary plane, and quadrature need no longer wonder what the hell is going on. This book explained imaginary numbers and phasors better than any of the math books I currently own.
A great text book and interesting for engineers and math nerds.
A friendly and easy introduction to the subject. As a cosmologist, I know well what Fourier transforms are but damned if I ever had to actually compute a DFT in an applied setting, worrying about windowing, aliasing, and Nyquist frequencies. Lyons takes you by the hand and whispers, calmly but assuredly, "it will be all right, child." Overall, a gentle and useful guide to the concepts underlying DSP.
This is the best book on DSP for practicing engineers. If you need to implement a solution to a DSP problem or use the FFT, this book provides all the information you need to know. It has a very practical focus, which is a relief compared to most DSP resources.