To reduce synchronization error and sensitivity to carrier frequency offset of MIMO-OFDM system,this paper proposes that construction of training sequence and synchronization method for MIMO-OFDM system.The training sequences of the synchronization method consist of two sequences of different structures:the first one is repetitive and the second one is antisymmetric.The factor β in the training sequences affects timing synchronization performance of the system.The timing synchronization is caught At the receiver by cross-correlating the training sequence and the local signal.The fractional frequency offset and integer frequency offset are estimated after catching precise timing synchronization,with the range of the integer frequency offset estimation being one-quarter of the bandwidth.Theoretical analysis and simulation show that the proposed synchronization has better synchronization performance than the conventional methods and reduces the computational complexity.
罗仁泽, 杨娇, 李芮, 牛娜, 党煜蒲, 付元华, 曹鹏. MIMO-OFDM系统训练序列构造及其同步方法[J]. 电子学报, 2014, 42(9): 1781-1785.
LUO Ren-ze, YANG Jiao, LI Rui, NIU Na, DANG Yu-pu, FU Yuan-hua, CAO Peng. The Construct of Training Sequence and Synchronization for MIMO-OFDM System. Chinese Journal of Electronics, 2014, 42(9): 1781-1785.
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2014, Vol. 42 
