| 光正交频分复用系统时域均衡算法研究 |
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| 引用本文： | 马良,陈林,肖江南,刘彬晖. 光正交频分复用系统时域均衡算法研究[J]. 光通信技术, 2012, 0(8): 41-43 |
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| 作者姓名： | 马良 陈林 肖江南 刘彬晖 |
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| 作者单位： | 湖南大学 信息科学与工程学院微纳光电器件及应用教育部重点实验室 |
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| 基金项目： | 国家自然科学基金(60977049)资助;国家863计划(2009AA01Z220,2009AA01Z222)资助 |
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| 摘 要： | 提出了时域DD-LMS均衡法在O-OFDM系统中的应用。理论分析了DD-LMS均衡原理,实验验证了在直接检测O-OFDM系统中用DD-LMS均衡法比用LS均衡法的系统的平均功率代价降低了1dB;在相同接收功率下,使用DD-LMS均衡方法的系统误码率比使用LS均衡系统误码率降低很多,相应信号星座图也较收敛。
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| 关 键 词： | 光正交频分复用 DD-LMS均衡 时域均衡 色散补偿 |
Time domain equalization algorithm for optical OFDM transmission system |
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| MA Liang,CHEN Lin,XIAO Jiang-nan,LIU Bin-hui. Time domain equalization algorithm for optical OFDM transmission system[J]. Optical Communication Technology, 2012, 0(8): 41-43 |
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| Authors: | MA Liang CHEN Lin XIAO Jiang-nan LIU Bin-hui |
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| Affiliation: | (Key Laboratory of Nano Optoelectronic Devices of Ministry of Education,School of Information Science and Engineering,Hunan University,Changsha 410082,China) |
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| Abstract: | A novel time domain equalization(TEQ) in O-OFDM System was proposed and experimentally demonstrated.The DD-LMS equalization principle was theoretically investigated.In the direct-detection O-OFDM system,the experimented results confirm that,compared with LS equalizer system,the decision direct least mean square(DD-LMS) system performs 1dB decreased on average,the bit error rate(BER) of the system decreases a lot at the same receive power,a more clearly received constellation could be abtained. |
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| Keywords: | O-OFDM DD-LMS equalizer time domain equalization dispersion compensation |
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