论文信息 - COARSE AND TURBO SYNCHRONIZATION : A CASE-STUDY FOR DVB

COARSE AND TURBO SYNCHRONIZATION : A CASE-STUDY FOR DVB – RCS

In this paper, we examine turbo synchronization in the presence of carrier frequency uncertainties and phase offsets for the DVB–RCS standard. As turbo synchronization can only achieve high estimation accuracy if the initial parameter offset is sufficiently small, we employ a coarse synchronization unit for pre-compensation. Especially for frequency offset estimation, the position of known pilot symbols within the burst is of significant importance. Therefore, we optimize both their distribution and their amount in order to guarantee reliable synchronization, high bandwidth efficiency, high power efficiency and excellent BER performance.

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