Fpga-based Mpeg-2 Pretreatment Ts Stream Reuse Design And Verification

Nowadays, the Digital Video Broadcasting (DVB) standard has been considered the globalism solution scheme of digital television and relative multimedia service. As DVB standard is used to design the general digital television system, the transport media can flexibly transfer MPEG-2 audio/video data, broadcasting data and user data. Multiplexer based on MPEG-2/DVB standard has become one of the key equipments worked in the digital television transfer system. Due to the special construction of multiplexing system and maximal flexibility of multiplexing mechanism, the digital television transfer system become the high speed information transfer network, and there is not necessary to distinguish the species of information transfer. The dedication multiplexer chips have been developed overseas. Many home companies have been engaged on the research and development of multiplexer based on DSP, and they can not produce the dedication multiplexer chips. So it has become the key problem for the home digital television system to produce dedication multiplexer chips independently. In this dissertation, the multi-program multiplexing theory based on pre-processing Transport Stream (TS) and realize method based on FPGA have been presented. The dissertation first discusses the base conception of digital television system,and introduces MPEG-2/DVB standard and Program Special Information (PSI), and then provides a design scheme based FPGA. The study of the dissertation places emphasis on the design and simulation of multiplexing blocks, and the design requirement is achieved.