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计算机应用研究 2008
Synchronization scheme using chaotic signal for MIMO_OFDM systems
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Abstract:
After introduction of MIMO_OFDM system mode and analysis of chaotic sequence produced by TD-ERCS map, proposed a new time and frequency synchronization algorithm based on chaotic sequence of MIMO_OFDM system. The algorithm utilized the excellent autocorrelation and cross correlation characters of TD-ERCS chaotic sequence, and fulfilled the precise estimation of the time delays and frequency offset of each sending antenna. The simulation results show that the new algorithm has a better synchronous precision and communication security.