FAST SYNCHONIZING METHOD OF OFDM DIGITAL BROADCASTING SYSTEM

摘要

PURPOSE: A fast synchronization, a digital broadcasting system and an OFDM method thereof are provided to performing a frame synchronization and an integer frequency error after symbol synchronization. CONSTITUTION: An OFDM symbol synchronization and a fraction time frequency error estimation operate. A FFT(Fast Fourier Transform) operates. A correlation diagram, an existing tone on the pilot location of a receive symbol with all possible integrals and of an OFDM symbol pilot and possible are obtained among one of the OFDM signal frame at all symbols(S40g). An index of an integral frequency error that has a maximum correlation diagram and the index of a pertinent symbol estimate respectively a frame synchronization and an integral error(S40l).