Non-Data Aided Carrier Offset Compensation for SDR Implementation

This paper deals with the design and implementation of an algorithm for non-data aided carrier offset compensation in a QPSK communication system. The work concentrates on frequency synchronization and we propose a new modulation removal algorithm where the carrier offset is corrected in two steps, reducing the computational complexity. Moreover, a FPGA-accelerated implementation is introduced. Initial tests show that the implemented algorithm works as expected and that the Simulink simulation time is reduced by half when accelerated by the FPGA.