The Research On The Monitor And Analysis Device Of DTV Transport Stream

The research on the digital television is becoming one of the most important ones in the international high technology research fields because of its huge potential market and economic profit. As a necessary debug tool in the development and application of digital television, DTV monitor and analysis device will be broadly applied to device manufacture, network installation, monitor of service running status and so on. So it is necessary to research and develop DTV monitor and analysis device.The functions of TDA0301 Monitor and Analysis Device of DTV Transport Stream developed by ourselves are introduced in this paper. It also presents how to implement some modules of this device in detail.TDA0301 is a high-performance workstation based on Windows platform. It provides DVB ASI and SPI interface and such functions as follows for transport stream compliance with MPEG-2, DVB, ATSC: real-time online monitor, detailed offline analysis, transport stream decoding. Online monitor and offline analysis can analyze syntax and semantics of transport stream, extract program information, monitor transport status. Transport stream decoding is SDTV and HDTV source decoding software. It can decode the transport stream files in hard disk into DTV signal then broadcast, fast forward, fast rewind or pause them on screen.In the DTV transport stream monitor and analysis project, I am in charge of transport stream decoding module, T-STD software simulation and buffer monitor module and USB 2.0 recorder and generator. This paper introduces the theory and implementation methods of these modules in detail. These modules have been implemented successfully.