Abstract: Mobile satellite burst communication operates under severe noise conditions, large Doppler offset, fast Doppler frequency shifts, and multi-path fading, so synchronization in receiver becomes very difficult, especially when the burst frame is too short. This paper proposes a new all-digital receiver structure, which relies on FFT-based burst acquisition and non-coherent detection. Simulation results demonstrate that the receiver can work under large frequency offset and have short acquisition time, so that can be used in mobile satellite burst communication.

Key words: FFT, non-coherent detection, mobile satellite communication, Doppler frequency offset