| HFC下行信道削波对QAM误码率的影响 |
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| 引用本文： | 毛惠敏,叶家骏,李迎春. HFC下行信道削波对QAM误码率的影响[J]. 上海大学学报(自然科学版), 2000, 6(4): 347-351 |
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| 作者姓名： | 毛惠敏 叶家骏 李迎春 |
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| 作者单位： | 上海大学,通信与信息工程学院,上海,201800 |
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| 摘 要： | 分析了副载波路复用模拟光纤传输系统中，引入ＭＱＡＭ方式的数据业务后，原模型的消波对数字信号的影响，认真分析了ＱｕｎＳｈｉ的论文，采用一咱新的零阶Ｂｅｓｓｅｌ函数近似式和一种快速收敛级数算法对消波造成的ＭＱＡＭ误码率进行计算，得出了一些较精确的结论。
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| 关 键 词： | 光纤同轴混合网 下行信道 消波 通信 |
| 修稿时间： | 2000-03-22 |
Impact of Clipping-induced Noise to BER of QAM over HFC Downstream Channel |
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| MAO Hui min,YE Jia jun,LI Ying chun. Impact of Clipping-induced Noise to BER of QAM over HFC Downstream Channel[J]. Journal of Shanghai University(Natural Science), 2000, 6(4): 347-351 |
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| Authors: | MAO Hui min YE Jia jun LI Ying chun |
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| Abstract: | The paper deals with the analysis of asymptotic clipping noise distribution and its impact on M ary QAM transmission over subcarrier multiplexed lightwave system. The previous work published by Qun Shi has been checked. By using a new approximate formula of zero order Bessel function and a fast convergent series algorithm, we evaluate the BER of MQAM more precisely. Moreover we get some conclusions. |
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| Keywords: | HFC analog/digital sub carrier multiplexing forward channel clipping |
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