Research on BDS B1C Signal Synchronization Method

An obvious feature of modern navigation signal is that they have pilot components and data components. BDS B1C signal contains two components based on different power distribution ratios, and the B1C signal synchronization research becomes a key of the current stage of navigation receiver. Firstly the principle is analyzed based on the deconstruction of the mathematical model of B1C signal, then the signal matched synchronization and BOC(1,1)-Like synchronization method are compared. The signal processes combined with ASPeCT and Bump-Jump in the acquisition, and secondly the tracking simulation analysis is carried out. The simulation results show that the BOC(1,1)-Like method can achieve similar results with the matching method under the condition of -20dB SNR. The carrier tracking accuracy is also similar, but the code tracking accuracy differs 0.092, which used under the condition of low precision.