Free Online DSP Books

Complete DSP Books in PDF Format

• The Scientist and Engineer's and Guide to Digital Signal Processing by Steven W. Smith. [Smi97]
• Mixed Signal and DSP Design Techniques edited by Walt Kester
• Introduction to Statistical Signal Processing by Robert M. Gray and Lee D. Davisson
• Numerical Recipies by Press, Teukolsky, Vertterling, and Flannery

DSP Sample Chapters

• Periodic Sampling from Understanding Digital Signal Processing by Richard G. Lyons
• Cascade Integrator Comb Filters from Multirate Signal Processing for Communication Systems by Fredric J. Harris

Book-Like DSP Web Pages

• JOS On-Line Publications by Julius O. Smith III. Includes:
• Introduction to Digital Filters
• Mathematics of the Discrete Fourier Transform
• Digital Signal Processing by Wikibooks
• The fxtbook: "Matters Computational" by Jörg Arndt
• A Notebook Compiled While Reading Understanding Digital Signal Processing by Lyons