摘要针对采用正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)技术的通信系统对符号同步性要求高及利用训练序列进行符号同步的传统算法存在的缺陷,提出一种基于训练序列的符号同步优化算法,该优化算法结合S&C算法和Park算法所采取的训练序列,设计新的序列结构,并选择更好的门限判决方法进行符号同步。仿真结果表明,在高斯白噪声和静态多径叠加的信道模型中,该方法的定时测量曲线为单一峰值,符号定时更为准确,同步效果得到优化。
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