In keeping with the goals of the first edition, this second edition is aimed at students of engineering college, it highlights the fundamental principles and applications of signals, systems, transformations and filters. The premise is to help students think clearly both time domain and in the frequency and change from one to another with relative ease. The text assumes familiarity with elementary calculus, complex numbers and basic analysis of circuits. The work uses visual and mathematical approaches to teach the basics of this discipline with applications to signal processing, systems and filters. This second edition has undergone extensive revisions and refinements in response to reviewers' comments and suggestions from readers of the first edition.
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