A Modified Pilot-Aided Multi-Peak Search Frame Synchronization Algorithm for DVB-S2

This work presents a modified version of an existing frame synchronization algorithm for DVB-S2 based satellite systems. The previous method uses pilot and header symbols to compute a decision metric, which is then fed to a peak search algorithm. The proposed method implements a more flexible decision metric and a peak search algorithm that allows for semi-analytical computations. This method is investigated through extensive computer simulations, which show that it is able to perform frame synchronization even at low signal-to-noise ratios and large carrier frequency offsets. Also, novel simulation results show a new perspective over the multi-peak search method.