Readers should consider turning to chapters 28 and 29 at this point. The next five chapters are devoted to the Fourier transform, its properties, and some of its most common applications.
In chapter 8, correlation is explained using the same approach. Chapters 6 and 7 deal with convolution, and contain one of the most intuitive graphical approaches I have seen in an introductory DSP book. Chapter 5 introduces linear systems and their basic properties, and tells why sine waves are so common in the study of such systems. The next part, “Fundamentals,” has nine chapters. However, if readers are willing to deal with BASIC conventions, the numerous programs in the book could be useful as detailed diagrams of the algorithms. The choice of BASIC to convey algorithm structure and implementation is a weakness, since modern DSP is increasingly focused on C. Chapter 4 gives an overview of crucial DSP issues, including number formats, precision, and programming considerations. Chapter 3 discusses the tools needed for supplying the DSP software with the proper data, representative of the continuous processes to be analyzed analog-to-digital and digital-to-analog converters are analyzed in some detail. Chapter 2 presents a compact introduction to the necessary probability and statistics. Chapter 1 attempts to motivate the study of DSP with examples drawn from many fields. The first part, “Foundations,” has four chapters.
The main body of the text is divided into four parts. Chapter 30, on the Laplace transform, and chapter 31, on the Z transform, familiar to every electrical engineering student, are well designed, with numerous graphics and flowcharts to help readers grasp the concepts. Although the chapter on Fourier transforms seems like a prerequisite for chapter 29, the two can be read concurrently. Chapter 28, on complex numbers, is a nice introduction to that topic. Potential readers undoubtedly vary in their interests and background, and I advise more technically inclined readers to begin with those four chapters. It presents down-to-earth explanations of almost every topic mentioned, although I think the last four, mathematically oriented, chapters should have been placed at appropriate points earlier in the book to reinforce these explanations. Smith's new book is probably one of the best, although not the most popular. With DSP everywhere and the crowd of more or less technically oriented users growing, the need for introductory texts has increased. More than 20 years ago, there were about half a dozen DSP texts, none of them introductory those books are still perfect in every respect. The market is almost flooded with introductory digital signal processing (DSP) texts and software, ranging from junk to real gems.
0 kommentar(er)
