Synchronization Techniques for Digital Receivers

Synchronization is a critical function in digital communications; its failures may have catastrophic effects on the transmission system performance. Furthermore, synchronization circuits comprehend such a large part of the receiver hardware that their implementation has a substantial impact on the overall costs. For these reasons design engineers are particularly concerned with the development of new and more efficient synchronization structures. Unfortunately, the advent of digital VLSI technology has radically affected modem design rules, to a point that most analog techniques employed so far have become totally obsolete. Although digital synchronization methods are well established by now in the literature, they only appear in the form of technical papers, often concentrating on specific performance or implementation issues. As a consequence they are hardly useful to give a unified view of an otherwise seemingly heterogeneous field. It is widely recognized that a fundamental understanding of digital synchronization can only be reached by providing the designer with a solid theoretical framework, or else he will not know where to adjust his methods when he attempts to apply them to new situations. The task of the present book is just to develop such a framework.

Klappentext

This is the first book to offer a clear and solid framework for understanding various techniques and applications to modem design. An accessible introduction to the state of the art in digital synchronization for data transmissions systems, the volume employs the basic concepts of parameter estimation theory to systematically derive synchronization algorithms that can be implemented in fully digital form and considers frequency-flat fading channels in depth. The authors present several chapters with new, cutting-edge data on frequency, phase and timing recovery in continuous-phase modulations. Graphs and charts aid comprehension, and exercises are inserted throughout the text.

Inhalt

1. Introduction.- 2. Principles, Methods and Performance Limits.- 3. Carrier Frequency Recovery with Linear Modulations.- 4. Carrier Frequency Recovery with CPM Modulations.- 5. Carrier Phase Recovery with Linear Modulations.- 6. Carrier Phase Recovery with CPM Modulations.- 7. Timing Recovery in Baseband Transmission.- 8. Timing Recovery with Linear Modulations.- 9. Timing Recovery with CPM Modulations.