Signals and Systems PDF
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Signals and Systems This page is intentionally left blank. Signals and Systems Smarajit Ghosh Professor Department of Electrical and Electronics Sikkim Manipal Institute of Technology Majitar, Rangpo, EastSikkim PEARSON Copyright © 2006 Dorling Kindersley (India) Pvt. Ltd. Licensees of Pearson Education in South Asia No part of this eBook may be used or reproduced in any manner whatsoever without the publisher’s prior written consent. This eBook may or may not include all assets that were part of the print version. The publisher reserves the right to remove any material present in this eBook at any time. ISBN 9788177583809 eISBN 9788131799758 Head Office: A-8(A), Sector 62, Knowledge Boulevard, 7th Floor, NOIDA 201 309, India Registered Office: 11 Local Shopping Centre, Panchsheel Park, New Delhi 110 017, India rro 11tlj aaugliter Saraaa This page is intentionally left blank. 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 of system responses for analysis and synthesis. The chapters in this book have been organized to present the subject matter in a structured and simple manner. An introductory chapter on mathematical preliminaries has been included for beginners. An appendix on the basics of MATLAB in signals has also been provided: Pedagogical features, such as numerous solved problems, short questions and answers, and multiple-choice questions, are included for the benefit of students. All feedback and suggestions regarding this book are welcome. SMARAJIT GHOSH This page is intentionally left blank. Acknovvledgements It is my great pleasure to thank Prof. A. K. Sarkar (Dean 10) and Prof. Ved Prakash of BITS, Pilani, who have encouraged me to write this book. I am deeply indebted to Prof. H.O. Gupta, Head of Electrical Engineering of lIT, Roorkee, for his valuable comments and suggestions. I am thankful to Prof. P. P. Sengupta and Prof. A. K. Dey of NIT, Durgapur; Prof. A. K. Mukhopadhaya, Vice Chancellor of Tripura University; Prof. A. K. Deb, Prof. G. Sarkar and S. Sengupta from the Department of Applied Physics, University College of Science and Technology, Calcutta University, for their support. I also wish to record my gratitude to the editorial team of Pearson Education for their valuable contribution in bringing out this book. Finally, I wish to express my sincere gratitude to my mother, Smt. Beena Ghosh, and my wife, Dr. (Mrs.) Kuntal Ghosh, for their patience and constant motivation during the preparation of this book. SMARAJIT GHOSH
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