Preface
Signals and Systems has been written for undergraduate engineering courses, in India as well as abroad. This course is common to electrical engineering, electrical and electronics engineering, electronics and communication engineering, and computer science. Recently, this course has gained tremendous importance due to the increasing practical use of signals analysis in digital signal processing (DSP), where the study of signals is a prerequisite. Even where analog methods are still used, like in telecommunication, medical and defence applications, the knowledge of the frequency-domain description of analog signals is mandatory. In addition, the study of systems is required for computer simulation, filter implementation, and the assessment ...
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