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中文摘要：
由伪噪音(PN ) 加权的一个新训练符号顺序被设计并且为直角的频率部门 multiplexing (OFDM ) 的有效预定和频率偏移量评价计划系统被建议。预定同步被使用片完成明智对称原始训练标志和 PN 加权的因素的好自相关结合。频率同步被利用其 PN 加权的因素在预定同步以后被移开的训练标志完成。与常规计划相比，建议计划能完成更小的均方差并且提供一个更宽的频率获得范围。
英文摘要：
A new training symbol weighted by pseudo-noise（PN） sequence is designed and an efficient timing and frequency offset estimation scheme for orthogonal frequency division multiplexing（OFDM） systems is proposed. The timing synchronization is accomplished by using the piecewise symmetric conjugate of the primitive training symbol and the good autocorrelation of PN weighted factor. The frequency synchronization is finished by utilizing the training symbol whose PN weighted factor is removed after the timing synchronization. Compared with conventional schemes, the proposed scheme can achieve a smaller mean square error and provide a wider frequency acquisition range.
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