Provided is a system and method for terrestrial digital broadcasting
service using a single frequency network without additional equipment.
The system and method synchronizes input signals into transmitting
stations by inserting a transmission synchronization signal into a header
of TS periodically, and solves the problematic ambiguity of the trellis
encoder by including a trellis encoder switching unit separately and
initializing a memory of the trellis encoder. The terrestrial digital
broadcasting system includes: a broadcasting station for multiplexing
video, voice and additional signals into transport stream (TS) and
transmitting the TS to the transmitting stations and a transmitting
stations for receiving the TS and broadcast the TS to receiving stations
through a single frequency network.