Introduction to Communication Systems (3rd Edition)

This textbook presents an introduction to communication systems with an emphasis on signal design and modulation. The book carefully develops the mathematical principles upon which such systems are based, using examples from a wide variety of current communications systems wherever possible. These range from commercial broadcasting and telephone systems to satellite telemetry and radar. Material added in this third edition is, primarily, about digital methods and reflects the continually increasing importance of digital signal transmission and modulation in communication systems. New material on the use of fiber optics in communications and the integrated services digital network (ISDN) has been added in Chapter 7, as well as an expended treatment of Nyquist waveform shaping for control of ISI. Optimum filtering methods for use with ISI criteria have been included in Chapter 9. Chapter 10 has an expanded treatment of FSK and both parallel and serial MSK, as well as two new sections on spread spectrum systems. Therefore, the presentation in this last chapter includes digital modulation methods that are currently being investigated for new communication systems designs.

This text presents a throrough introduction to communication systems, with and emphasis on engineering aspects of signal waveform design and modulation. Its presentation skillfully connects development of mathematical principles to examples from current operating communication systems. Most importantly, explanations and exercises are carefully motivated with practical applications.

Features

• Explanations of practical communication systems presented in the context of theory.
• Over 300 excellent illustrations help students visualize difficult concepts and demonstrate practical applications.
• Over 120 worked-out examples promote mastery of new concepts, plus over 130 drill problems with answers extend these principles.
• A wide variety of problems, all new to this edition -- including realistic applications, computer-based problems, and design problems.
• Coverage of current topics of interest, such as fiber optics, spread spectrum systems and Integrated Digital Services Networks.