||Recently, there are three major different specifications developed for the terrestrial digital video broadcasting. The terrestrial digital video broadcasting (DVB-T) of European Standard has adopted the orthogonal frequency division multiplexing (OFDM) modulation technique, which offers high-rates, high bandwidth-efficient digital transmission, and various multimedia services over frequency-selective fading channels. However, OFDM technique is very sensitive to synchronization errors, and this deeply impacts system performance. What we concern for synchronization errors includes symbol timing, carrier frequency offset (CFO). The synchronization scheme is mainly based on the correlation of cyclic prefix and the known pilot signals.|
This thesis has studied the effect of synchronization errors on OFDM systems, and presented synchronization schemes for DVB-T receivers. We use hardware description language - Verilog and MolelSim to implement the synchronization schemes and verify the design by using Matlab simulation results for the RTL model.
|| ESTI,“Digital Video Broadcasting (DVB); Framing Structure, Channel Coding and Modulation for Digital Terrestrial Television,”ETSI EN300744 v1.4.1, 2001.|
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