Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (29): 146-148.
• 数据库、信号与信息处理 • Previous Articles Next Articles
PU Bin，ZHAO Haijun，LI Mingdong
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蒲 斌，赵海军，李明东
Abstract: Based on the analysis of ISI and ICI caused by multipath delay effect in OFDM system，the radical principle of cyclic prefix is introduced and the symbol demarcation synchronous algorithm is proposed to eliminate ISI and ICI occurring in OFDM system using cyclic prefix.Realization process about demarcation synchronous algorithm and correlative theory are analysed and the approximate expression is educed.The simulation result of performance is given in the end.
Key words: Orthogonal Frequency Division Multiplexing（OFDM） system, cyclic prefix, synchronous algorithm, frequency deviation
摘要： 在对OFDM系统中由于多径时延效应带来的ISI和ICI分析的基础上，介绍了循环前缀的基本原理，提出了利用循环前缀实现消除OFDM系统中存在的ISI和ICI的符号定界同步算法;分析了算法的实现过程和相关理论，得出了算法的近似表达式和性能模拟结果。
关键词: 正交频分复用（OFDM）系统, 循环前缀, 同步算法, 频率偏差
PU Bin，ZHAO Haijun，LI Mingdong. Realization of symbol demarcation synchronous algorithm using cyclic prefix in OFDM[J]. Computer Engineering and Applications, 2011, 47(29): 146-148.
蒲 斌，赵海军，李明东. OFDM中用循环前缀实现符号定界同步算法[J]. 计算机工程与应用, 2011, 47(29): 146-148.
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http://cea.ceaj.org/EN/Y2011/V47/I29/146
