Signal Processing for Intelligent Sensor Systems with MATLAB®, 2nd Edition

Part I

Fundamentals of Digital Signal Processing

It was in the late 1970s that the author first learned about digital signal processing as a freshman electrical engineering student. Digital signals were a new technology and generally only existed inside computer programs and as hard disk files on cutting edge engineering projects. At the time, and reflected in the texts of that time, much of the emphasis was on the mathematics of a sampled signal, and how sampling made the signal different from the analog signal equivalent. Analog signal processing is very much a domain of applied mathematics, and looking back over 40 years later, it is quite remarkable how the equations we process easily today in a computer program were implemented eloquently ...