Research And Implementation Of Dvb-t Emission-ended Output Interface

Television Broadcasting is coming from Analog Television Broadcasting to Digital Television Broadcasting. At the same time, Digial Terrestrial Television Broadcasting also is coming into our life. This paper describes theprinciple of a part of DVB-T transmission system. The purpose of this paper is torealize digital-to-analog conversion.In this paper, firstly, the basic theory of OFDM system is described , then gives an introduction of related technologies of the output interface of DVB-T transmission system . Finally ,this paper describes the design and realization of the output interface of DVB-T transmission system in software and hardware.It comes to the conclusion that author realizes the purpose of the output interface of DVB-T transmission system .