Digital Communication Principles (Communication Textbooks for Higher Education)

Author: Li Wenhai et al.
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Features: This book comprehensively discusses the basic principles and concepts related to analog signal digitization and corresponding digital signal transmission in digital communication technology. The basic content includes the fundamental principles of PCM (Pulse Code Modulation) achieved through processes such as sampling, quantization, and encoding, as well as the concepts of DPCM (Differential Pulse Code Modulation) and ADPCM (Adaptive Differential Pulse Code Modulation) for further compression of coding rates. To adapt to the development and needs of multimedia technology, modern mobile communication technology, and IP network telephone technology, this book also introduces the digitization of image signals and low-bit-rate speech coding techniques, such as subband coding and Linear Predictive Coding (LPC). In terms of digital signal transmission, it elaborates on the basic theories of digital signal transmission, multiplexing transmission, and the principles of related digital signal transmission technologies such as PDH (Plesiochronous Digital Hierarchy) and SDH (Synchronous Digital Hierarchy). This book is intended as a teaching text for higher education institutions and can also serve as a technical reference for communication engineering professionals.