Digital broadcasting transmission system and method

The digital broadcast transmission system and method are disclosed. Normal stream (Normal Stream) and a plurality of the turbo stream (Turbo Stream) RS encoder, for interleaving the encoded dual transport stream interleaver for encoding the multiplexed dual transport stream (Dual Transport Stream) in accordance with the present invention, the interleaved dual transmission detecting the turbo stream from the stream and the turbo processing unit, the doctor (pseudo) the dual transport stream with the turbo process for encoding the detected turbo stream 2-VSB encoding and trellis encoding the trellis encoder, mitteu trellis-encoded dual adding a field sync and segment sync signal in a transport stream and includes a multiplexer to multiplex the main. This makes it possible to improve reception performance of the ATSC VSB system. P-2 VSB coding, Turbo coding, Trellis encoder, multiplexer, the adder