Reception efficiency constitution method and the digital broadcast transmitter and its signal processing method of the transmission stream packet for digital broadcast in order to improve

摘要

This invention the existing digital broadcast sending and receiving system and maintaining compatibility is possible, constitution method and its signal processing method of the transmission stream packet for digital broadcast are offered. Constitution method and the digital broadcast transmitter and its signal processing method of the transmission stream packet for digital broadcast for reception efficiency improvement are proposed. According to this invention, the stuffing territory in order to insert the known addition reference signal for same period (stuffing region) it forms the transmission stream packet which is included, it randomizes the packet which includes the stuffing territory, the addition reference signal (SRS) it inserts in the stuffing territory of the packet which is randomized it adds the parity for error correction to the packet where the addition reference signal is inserted. In addition, doing interleaving vis-a-vis the packet where parity is added, doing trellis encoding vis-a-vis the packet which interleaving is done, the trellis the segmented synchronization signal (Segment sync) with the field synchronization signal (Field sync) with after inserting, VSB modulating the packet which inserts the synchronization signal in the packet which is encoded and RF converting it transmits.