"This class-tested textbook is intended for students interested in learning digital signal processing from the ground up, but who may not have much mathematical or engineering training. The focus is on digital signals, meaning discrete time signals as represented in modern computers. Unlike many other books, this book does not cover continuous time signals (except insofar as necessary to understand digital sampling). The scope of the book is limited to these general topics: Signals and systems, Sampling theory, Discrete Fourier analysis, and Discrete-time linear filtering"--