First published in 1995, Wavelets and Subband Coding offered a unified view of the exciting field of wavelets and their discrete-time cousins, filter banks, or subband coding. The book developed the theory in both continuous and discrete time, and presented important applications. During the past decade, it filled a useful need in explaining a new view of signal processing based on flexible time-frequency analysis and its applications. Since 2007, the authors now retain the copyright and allow open access to the book.
Note
Preface to the Second, 2007 Open-Access Edition First published in 1995, Wavelets and Subband Coding filled a useful need in explaining a new view of signal processing based on flexible time-frequency analysis and its applications. The book has been well received, and used by researchers and engineers alike. In addition, it was also used as a textbook for graduate courses at many universities. So what has changed drastically in the last 12 years? The field has matured, the teaching of these techniques is more widespread, and publication practices have evolved. Specifically, the World Wide Web, which was in its infancy a dozen years ago, is now a major communications medium. Thus, in agreement with our original publisher, Prentice-Hall, we now retain the copyright, and have decided to allow open access to the book online (protected under the by-nc-nd license from Creative Commons). In addition, the solutions manual, prepared by G. Chang, M. Goodwin, V. K Goyal and T. Kalker, is also available upon request for teachers using the book. We thus hope the book continues to play a useful role while getting a wider distribution. Enjoy it!
