Based On The System View Digital Television Terrestrial Broadcasting Transmission System Of The Simulation Analysis

DTTB(Digital Television terrestrial Broadcasting) is one of present digital television broadcasting models, whose transmission media is earth.The standard of Digital Television terrestrial Broadcasting is in disputation, for its transmission environment is rather awful, its spectrum is very limited and its service is disperse, so it is potential to be improved in many aspects. Now there are three standards of digital television terrestrial broadcasting in the world. DVB-T(Digital Video Broadcasting-terrestrial) has been produced by Joint Technical Committee(JTC) of the European Broadcasting Union(EBU), European Telecommunications Standard Institute(ETSI) and so on. DVB-T uses COFDM transmission and supports mobile reception. Advanced Television System Committee(ATSC) has produced by Technology Group on Distribution in USA.It uses 8VSB modulation and it can not support mobile reception.Integrated services DigitalBroadcasting-terrestrial(ISDB-T) uses Band Segmented Transmission OFDM and has two characters: bandwidth and segmented transmission and mobile reception. But it is very complex.The inland institutes has produced five project, such as Advanced Digital Terrestrial Broadcasting(ADTB) produced by Shanghai JiaoTong University , Terrestrial Digital Multimedia/TV Broadcastion(DMB-T) produced by the Electronic Engineer-ing Department of Tsinghua University, and so on.The paper includes the analyses of DVB-T, ASTC, ISDB-T and introduces the home projects. At last DVB-T is simulated in Rice channel, AWGN channel, multipath channel environment and mobile reception on SystemView. For the limits of subjective and objective factor, the paper has many buggs.