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中文摘要：
对利用共轭对称结构训练符号进行OFDM同步的算法在多径衰落信道下的性能进行了分析，指出了这类算法所适用的信道环境：在第一径为主径、具有很强的功率，而其它径的功率较小的信道环境下，这类算法能完全准确的进行定时同步和整数频偏估计．当这类算法用在不存在功率很强的主径的信道环境下，算法的定时估计精度会下降，并无法保证能够进行完全正确的整数频偏估计．增加子载波的数目和提高信噪比能从一定程度上克服这种情况，但这增加了系统的复杂度．
英文摘要：
The performance of OFDM synchronization method based on conjugated-symmetrical-structured training sequence is studied, and the channel environment in which such kind of method can work well is given： in the channel environment where the first path is the dominant path and its power is much stronger than other paths, such method can get the timing position and integral frequency offset correctly; In the channel environment where there is not a dominant path, the accuracy of timing estimation will be reduced and the correctness of the integral frequency offset cannot be guaranteed.
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