Frequency synchronization strategy for a PC-based DRM receiver

In this paper we propose a synchronization strategy for a PC-based DRM receiver. Given the parameters of the DRM system and the properties of off-the-shelf PC hardware, the requirements for the frequency synchronization are analyzed. Following these requirements an acquisition algorithm using the FFT and a tracking algorithm based on the incremental phase shift between two OFDM symbols is proposed. Both algorithms utilize the continuous frequency correction pilot tones in the DRM signal. Simulation results on different fading channels show that the synchronization scheme suits our needs.