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Amazon.com's Top-Selling DSP Book for Seven Straight Years--Now Fully Updated!

"Understanding Digital Signal Processing, Third Edition, " is quite simply the best resource for engineers and other technical professionals who want to master and apply today's latest DSP techniques. Richard G. Lyons has updated and expanded his best-selling second edition to reflect the newest technologies, building on the exceptionally readable coverage that made it the favorite of DSP professionals worldwide. He has also added hands-on problems to every chapter, giving students even more of the practical experience they need to succeed.

Comprehensive in scope and clear in approach, this book achieves the perfect balance between theory and practice, keeps math at a tolerable level, and makes DSP exceptionally accessible to beginners without ever oversimplifying it. Readers can thoroughly grasp the basics and quickly move on to more sophisticated techniques.

This edition adds extensive new coverage of FIR and IIR filter analysis techniques, digital differentiators, integrators, and matched filters. Lyons has significantly updated and expanded his discussions of multirate processing techniques, which are crucial to modern wireless and satellite communications. He also presents nearly twice as many DSP Tricks as in the second edition--including techniques even seasoned DSP professionals may have overlooked.

Coverage includes New homework problems that deepen your understanding and help you apply what you've learned Practical, day-to-day DSP implementations and problem-solving throughout Useful new guidance on generalized digital networks, including discrete differentiators, integrators, and matched filters Clear descriptions of statistical measures of signals, variance reduction by averaging, and real-world signal-to-noise ratio (SNR) computation A significantly expanded chapter on sample rate conversion (multirate systems) and associated filtering techniques New guidance on implementing fast convolution, IIR filter scaling, and more Enhanced coverage of analyzing digital filter behavior and performance for diverse communications and biomedical applications Discrete sequences/systems, periodic sampling, DFT, FFT, finite/infinite impulse response filters, quadrature (I/Q) processing, discrete Hilbert transforms, binary number formats, and much more

978 pages, Hardcover

First published January 1, 1996

62 people are currently reading
389 people want to read

About the author

Richard G. Lyons

12 books2 followers

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Displaying 1 - 12 of 12 reviews
Profile Image for Brian.
26 reviews
December 24, 2013
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.
Profile Image for Christopher.
50 reviews16 followers
November 16, 2009
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.
Profile Image for DJ.
317 reviews291 followers
Want to read
January 23, 2010
supergentle intro to dsp
Profile Image for Brian Powell.
204 reviews36 followers
April 27, 2020
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.
140 reviews7 followers
July 18, 2025
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.
Profile Image for Luke Fisher.
14 reviews
December 7, 2025
best DSP textbook. It reads very conversational and he doesn’t assume too much mathematically. Still rigorous and deep where it should be, but it’s not just a book full of equations you have to make sense of. I read it as supplementary material for a course, was extremely helpful.
Profile Image for Tony Brown.
7 reviews
January 3, 2009

Very good DSP book. Explains the DFT very well, also introduces the convolution in a very creative way, in the discussion of FIR filters.
7 reviews
Currently reading
June 26, 2008
Reading to get better at my job. Plus, I'm a math nerd.
Displaying 1 - 12 of 12 reviews

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