Digital Communications: A Discrete-Time Approach [Rice] 9780138138226

• Discrete-time processing of discrete-time band-pass signals is detailed in the context of band-pass communications using discrete-time processing. Important issues such as equivalent operating modes are described in Chapter 2, multirate processing is described in Chapter 3, and its application to modulators, demodulators, and receivers it discussed in detail in Chapter 10.
• Architectures for discrete-time QAM receivers are the main focus of the entire text. Simple discrete-time architectures motivated by continuous-time implementations are described in Chapter 5 and more advanced versions, exploiting multirate processing, are described in Chapter 10.
• Discrete-time architectures for performing carrier phase synchronization are described in Chapter 7. The form of the carrier phase synchronizer is derived from maximum likelihood principles and a strong link to discrete-time phase locked loops (detailed in Appendix C) is emphasized.
• Discrete-time architectures for performing symbol timing synchronization are described in Chapter 8. The form of the symbol timing synchronizer is derived from maximum likelihood principles and a strong link to discrete-time phase locked loops (detailed in Appendix C) is emphasized. Key components such as adaptive interpolation using the Farrow filter structure, timing error detectors, and interpolation control are described in detail. Concrete examples are included to help put all the pieces together.
• System components and their practical considerations are addressed in Chapter 9. Topics include analog-to-digital and digital-to-analog converters (both their placement in a sampled data system and the impact of imperfections on system performance); discrete-time oscillators, with an emphasis on the direct digital converter (DDS); resampling filters including the CIC/Hogenauer filter, the half-band filter, and the polyphase filterbanks; Coordinate Rotation Digital Computer (CoRDiC); and automatic gain control.
• Pulse shapes receive an extensive treatment, both from a theoretical (continuous-time) point of view and from a practical (discrete-time) point of view is included in Appendix C

 

頁數：800
版次：第1版
年份：2009年
規格：平裝/單色
ISBN：9780138138226

1 Introduction
2 Signals and Systems 1: A Review of the Basics
3 Signals and Systems 2: Some Useful Discrete-Time Techniques for Digital Communications
4 A Review of Probability Theory
5 Linear Modulation 1: Demodulation, and Detection
6 Linear Modulation 2: Performance
7 Carrier Phase Synchronization
8 Symbol Timing Synchronization
9 System Components
10 System Design