| 带阻预箝位混合光传输系统误码性能分析 |
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| 引用本文： | 罗钦骑,容太平,黄铁侠.带阻预箝位混合光传输系统误码性能分析[J].华中科技大学学报(自然科学版),1998(3). |
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| 作者姓名： | 罗钦骑 容太平 黄铁侠 |
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| 作者单位： | 华中理工大学电子与信息工程系 |
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| 摘 要： | ＨＦＣ网在混合传输ＡＭ／ＱＡＭ信号时会因激光二极管的阈值特性产生箝位失真．因此分析了采用预箝位和带阻滤波处理对箝位失真的影响，研究了回峰的特征，计算了误码率．结果表明与低通预箝位系统相比，采用带阻滤波的预箝位系统能更有效地降低误码率．
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| 关 键 词： | HFC网 箝位失真 预箝位 回峰 误码率 |
The Bit Error Rate Performance of AM/QAM Hybrid Light Transmission System with Bandstop Preclamming |
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| Luo Qinqi Doctoral Candidate, Dept. of Electronics & Inf. Eng.,HUST,Wuhan ,China. Rong Taiping Huang Tiexia.The Bit Error Rate Performance of AM/QAM Hybrid Light Transmission System with Bandstop Preclamming[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1998(3). |
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| Authors: | Luo Qinqi Doctoral Candidate Dept of Electronics & Inf Eng HUST Wuhan China Rong Taiping Huang Tiexia |
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| Institution: | Luo Qinqi Doctoral Candidate, Dept. of Electronics & Inf. Eng.,HUST,Wuhan 430074,China. Rong Taiping Huang Tiexia |
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| Abstract: | The threshold of laser diode will produce clipping noise while transmitting simultaneously AM and QAM signals in a hybrid fiber/coax (HFC) network. The effect of using preclipping and handstop filtering on clipping distortion is discussed. The characteristic of recurring tip is studied, and the bit, error rate of the bandstop preclipping system is calculated. Numerical results show that the bandstop preclipping system can reduce more BER that the lowpass preclipping system does. |
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| Keywords: | hybrid fiber coax network clipping noise preclipping recurring tip bit error rate |
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