Research And Applacation Of Mobile Television Broadcast System Based On Dbm-t

As experiencing mechanical television era, black and white TV then color TV era, television has entered into the digital television age. There are three international standards about the terrestrial digital multimedia broadcasting system: DVB-T from Europe, ATSC from America and ISEB-T from Japan, many countries and areas are choosing and making their own standards. Also,our country proposes a original system fit to our condition, called DMB-T(Terrestrial Digital Multimedia/TV Broadcasting). It mainly adopts mQAM/QPSK of TDS-OFDM(TDS-OFDM:Time Domain Synchronous-Orthogonal Frequency Division Multiplexing).In this paper, we try to use the digital television broadcasting technology of DMB-T standard to design mobile television broadcasting system in Zhengzhou. Based on the actual market demand, and to know and use the DMB-T technology to guide the problem which maybe meeted in practice better, his thesis designed and analysised this systerm carefully.Compareing to the DVB-T widely used in the world, we mainly analysed the DMB-T researched and developed by our country, and got the conclosion that DMB-T digital multimedia broadcasting system is more suitable to our country.The testing result shows that this technology is reliable and stable. And it has reached to the excepted goal. This syatern fullfils the actual demands and has higher value.