Introduction to Communications
In this chapter, the reader will find examples and applications that demonstrate the pivotal role of signals theory in the world of communications systems. The chapter explores a selection of applications of signals theory to the transmission and reception of information, particularly by radio. Various approaches to modulation and demodulation are presented from a signals perspective. Practical problems associated with the design and operation of radio receivers also find elegant solutions through the theory of signals and systems that has been elaborated in earlier chapters.
Almost every day it seems that some new communication device is enhancing our lives. In recent years, an astonishing variety of new communications services have moved from ...