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新型改进光双二进制传输的编解码方案
提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过
程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信
号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ
信号比MD．NRZ信号在传输后有更低的误码率。-Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit
high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated
thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction
，
and couldbe di．
recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical
duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’
formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in
each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．
提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过
程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信
号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ
信号比MD．NRZ信号在传输后有更低的误码率。-Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit
high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated
thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction
，
and couldbe di．
recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical
duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’
formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in
each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．
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新型改进光双二进制传输的编解码方案.pdf