ATSC DTV METHOD AND APPARTATUS FOR REPEATING SIGNAL OF ATSC DTV BROADCASTING

摘要

The present invention relates to a signal relay method and a signal relay apparatus of the ATSC DTV broadcast, receiving the relay target signal, and performs frequency down-conversion on the received signal, the down-converted separating the signal into a first split signal and a second separated signal, and extracts a pilot signal from the first separated signal, and performs ICS (Interference Cancellation System) operation on the second separated signal to produce an interference cancellation signal and merging the extracted pilot signal and the interference canceling signal, and by transmitting the merged signal to another device, the coverage extension and the shade area service complement while using an ICS type of digital channel repeater system has the effect of , the invention that enables the efficient transmission of the transmit and receive frequency synchronizing and pilot signals at the same time. ;