| OFDM低压电力线通信系统的符号同步及其FPGA实现 |
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| 引用本文： | 何世彪,王杰强,韩彦净,张青,吴红桥. OFDM低压电力线通信系统的符号同步及其FPGA实现[J]. 电子技术应用, 2012, 38(4): 94-97 |
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| 作者姓名： | 何世彪 王杰强 韩彦净 张青 吴红桥 |
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| 作者单位： | 重庆大学 通信工程学院,重庆,400044 |
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| 摘 要： | 为采用FGPA技术可靠实现基于G3-PLC协议的OFDM电力线通信系统的符号同步,推导了符号同步偏差对G3-PLC系统性能的影响。针对传统符号同步算法存在的算法复杂、FPGA实现困难等缺点,根据G3-PLC系统的帧结构,提出了基于训练序列的新的符号同步算法。仿真结果和FGPA实现效果表明,该算法不仅能够有效地实现G3-PLC系统的符号同步,而且运算量小,硬件资源消耗少。
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| 关 键 词： | 正交频分复用 电力线通信 G3-PLC协议 符号同步 FPGA |
Symbol synchronization for low-voltage power line communication system based on OFDM and its FPGA implementation |
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| He Shibiao , Wang Jieqiang , Han Yanjing , Zhang Qing , Wu Hongqiao. Symbol synchronization for low-voltage power line communication system based on OFDM and its FPGA implementation[J]. Application of Electronic Technique, 2012, 38(4): 94-97 |
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| Authors: | He Shibiao Wang Jieqiang Han Yanjing Zhang Qing Wu Hongqiao |
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| Affiliation: | (College of Communication Engineering,Chongqing University,Chongqing 400044,China) |
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| Abstract: | To implement well symbol synchronization of power line communication system based on G3-PLC specification with FGPA,this paper deduceds the influence of symbol synchronization offset on G3-PLC system.The conventional algorithm has some limitations,such as high complexity,difficult FPGA implementation,and so on.A new algorithm based on training sequence is pre-sented according to the character of G3-PLC frame structure.Both simulation and implementing in FPGA show that the algorithm not only be effective in achieving the symbol synchronization,but also has low computation and hardware resource consumption. |
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| Keywords: | OFDM power line communication G3-PLC specification symbol synchronization FPGA |
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