Communication Systems (Fourth Edition)

Author: He Jin
Publisher:
Publish Date: 2003-10-01
Features: With the development of microelectronics technology, computer technology, laser technology, satellite and optical fiber, and other related information technologies, especially the organic integration of computing and communication, modern communication is undergoing a transformation. In this transformation, new technologies, methods, services, and systems are constantly emerging, and the content of modern communication is becoming increasingly rich. Against the backdrop of the continuous emergence of new communication technologies and the gradual expansion of new demands, integrated communication and global personal communication, which are built on the foundation of interconnected and interoperable multi-networks, integrated multiple systems, and the comprehensive application of various technologies, are rapidly developing. This requires communication technology professionals and students in related fields not only to deeply study typical communication systems in their own majors but also to comprehensively learn and understand various widely used modern communication systems to achieve a thorough and systematic understanding of modern communication. This book is written precisely to achieve this purpose. It provides an in-depth analysis of the fundamental theories and key aspects of communication systems, aiming to help students grasp the essence of communication through discussions. The book first outlines the basics of communication systems and the key technologies that need to be studied, and then discusses in detail chapters on random processes, continuous-wave modulation, pulse modulation, baseband pulse transmission, signal space analysis, passband data transmission, spread-spectrum modulation, multi-user wireless communication, information theory basics, and error-control coding. Each chapter is accompanied by a large number of exercises to facilitate students' practical mastery. The book also includes valuable appendices, such as an introduction to probability theory, a brief overview of signals and systems, Bessel functions, confluent hypergeometric functions, an introduction to cryptography, and some useful tables. The book emphasizes the statistical foundation of communication theory and provides eight computer experiments simulated using MATLAB, which almost cover the main content of each chapter, forming a unique "software laboratory" for communication theory. This book can serve as a textbook for graduate students or senior undergraduate students in communication, information, electronic, and computer-related fields in higher education institutions, as well as a reference for relevant scientific research and management personnel.