Digital Satellite Tv Receiver Timing Synchronization Design And Implementation

Digital HDTV (Digital High Definition Television) technology integrates the most advanced image compressed encoding technology and the digital transmission technology. It has become one of the focuses in the high-tech competitions. DVB is the digital HDTV standard that developed by more than 170 organizations in Europe. It mainly comprises satellite (DVB-S), terrestrial (DVB-T) and cable (DVB-C) digital television systems.This paper is about the algorithms of timing recovery used in digital satellite television (DVB-S and DVB-S2) channel receiver system and its implementation in ASIC.The first chapter gives an overview of the digital HDTV and the DVB standard of Europe, and their development are also introduced in the chapter. And it's mainly focused on the DVB-S and DVB-S2 system , it will show you how the DVB-S2 system is back-compatible with DVB-S system.The second chapter makes an introduction of the fundamental theory of the modulation and demodulation of the PSK, it can be the theory basis of the chapters following.The third chapter discusses with the timing recovery theory and algorithms. After analyzing their characteristics and differences, it brings forward the algorithm and structure applicable for DVB-S system.The fourth chapter will show you the details of the designs in the timing recovery system based on interpolator. There are several ways to design the parts, and the most practical way is used in the receiver system, In the end of the chapter, some improvements of the design are also introduced.The fifth chapter introduce the implementation in ASIC of the timing recovery system in DVB-S receiver.The main contributions of this paper are proposing the design of DVB-S and DVB-S2 receiver. And the soul of the paper is the algorithm and ASIC implementation scheme of timing recovery applicable for DVB-S system.