| OFDM系统中定时同步算法的研究 |
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| 引用本文： | 张同,周金荣,郭以成.OFDM系统中定时同步算法的研究[J].舰船电子工程,2012,32(3):36-37,67. |
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| 作者姓名： | 张同 周金荣 郭以成 |
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| 作者单位： | 中国船舶重工集团公司第七二二研究所,武汉,430079 |
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| 摘 要： | 正交频分复用（OFDM）对同步偏差十分敏感,同步偏差的产生会使OFDM系统性能大大降低。通过对训练符号在时域乘以特殊伪随机序列来消除定时同步中的峰值平台问题,仿真结果表明,与传统算法相比,改进算法在同步位置具有很尖锐的峰值,同步性能更好,符号定时更精确。
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| 关 键 词： | 正交频分复用 同步算法 训练符号 |
Research on Timing Synchronization Algorithm for OFDM Systems |
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| ZHANG Tong,ZHOU Jinrong,GUO Yicheng.Research on Timing Synchronization Algorithm for OFDM Systems[J].Ship Electronic Engineering,2012,32(3):36-37,67. |
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| Authors: | ZHANG Tong ZHOU Jinrong GUO Yicheng |
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| Institution: | (No.722 Research Institute of CSIC,Wuhan 430079) |
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| Abstract: | Orthogonal Frequency Division Multiplexing(OFDM) is particularly sensitive to the synchronization errors that can greatly decrease the OFDM system performance.The plateau in timing synchronization is eliminated by multiplying the special pseudo random sequence in time domain.The simulation results show that the proposed scheme is more efficient in comparison with the conventional algorithm,the improved algorithm has a very sharp peak in synchronization position and a better performance in synchronization,and it is more accurate in symbol timing. |
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| Keywords: | OFDM synchronization algorithm training symbol |
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