GROUND DIGITAL TV BROADCASTING TRANSMITTING METHOD AND GROUND DIGITAL TV BROADCASTING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a ground digital TV broadcasting transmitting method and a ground digital TV broadcasting system, with which repeated transmitting is enabled while keeping sufficient performance as a while by holding high frequency accuracy, improving a transmitting quality as well and dealing with multi-stage repeating although there is a problem that the transmitting quality is deteriorated by superimposing phase noise in a conventional method. SOLUTION: In this ground digital TV broadcasting transmitting method, a receiving side frequency reference signal, a pilot carrier and a broadcasting wave IF signal are transmitted from a studio as a frequency-multiplexed STL signal and at a transmitting station, the frequency synchronization and noise removal of the broadcasting wave IF signal and a repeating wave IF signal are performed by using the receiving side frequency reference signal and the pilot carrier.