Carrier offset detection and frame clock synchronisation in a multicarrier receiver

摘要

A synchronization system and method for obtaining carrier synchronization of an input OFDM modulated digital signal having a pseudoperiodic second symbol. The system includes an apparatus for obtaining the synchronization of the carrier frequency offset by first obtaining the fractional carrier frequency offset, and then obtaining the integral carrier frequency offset through a matched filtering process. The process of synchronization is carried out by the use of a combination of FFT and IFFT blocks.