A Method on the Reduction of APDCDM Signal’s Voltage Level

CHAI Jia; CHEN Xin-qiao; ZHANG Wei; HUANG Ya-nan

doi:10.13756/j.gtxyj.2016.05.007

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A Method on the Reduction of APDCDM Signal’s Voltage Level

- A Method on the Reduction of APDCDM Signal’s Voltage Level
- Study on Optical communication Issue 5, Pages: 23-26(2016)
- 作者机构：
  
  中国传媒大学信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2016.05.007
  CLC： TN929.11
- Published：2016，
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[1]柴佳,陈新桥,张薇,黄亚楠.一种降低APDCDM信号幅值级数的方法[J].光通信研究,2016(05):23-26.

CHAI Jia, CHEN Xin-qiao, ZHANG Wei, et al. A Method on the Reduction of APDCDM Signal’s Voltage Level. [J]. (5):23-26(2016)
[1]柴佳,陈新桥,张薇,黄亚楠.一种降低APDCDM信号幅值级数的方法[J].光通信研究,2016(05):23-26. DOI： 10.13756/j.gtxyj.2016.05.007.

CHAI Jia, CHEN Xin-qiao, ZHANG Wei, et al. A Method on the Reduction of APDCDM Signal’s Voltage Level. [J]. (5):23-26(2016) DOI： 10.13756/j.gtxyj.2016.05.007.

摘要

APDCDM（双极性占空比复用）是降低DCDM（占空比复用）信号幅值级数的一种有效方法。为了进一步降低APDCDM信号的幅值级数

提出了基于信号替换原理的I-APDCDM（改进型双极性占空比复用）技术。分析了I-APDCDM中信号替换的工作原理及电路实现方法

采用Optisystem和MATLAB联合仿真技术设计了I-APDCDM光纤传输系统

分析了改进后系统的传输距离和调制器的消光比对I-APDCDM信号的影响规律。仿真结果表明

I-APDCDM将APDCDM复用信号的幅值级数降低了1级

每比特复用信号的平均能量降低了A2 Ts/24

有效地提高了系统的性能。

Abstract

Absolute Polar Duty-Cycle Division Multiplexing（APDCDM）is a novel multiplexing technology used to reduce the signals’ voltage level in Duty-Cycle Division Multiplexing（DCDM）system.In order to further reduce the number of voltage levels

a novel coding technique called Improved-APDCDM（I-APDCDM）is proposed.The principle of I-APDCDM is first introduced.An optical fiber transmission system based on I-APDCDM is then designed by joint simulation of Optisystem and MATLAB.The effects of transmission distance and extinction ratio of modulator are analyzed.The simulation results show that

comparing with APDCDM

the number of voltage levels of system is reduced by 1and the power of transmitted signal is reduced by A2 Ts/24.Therefore

the I-APDCDM not only reduces the number of voltage levels but also significantly improves the system performance.

关键词

光纤传输系统双极性信号占空比复用信号替换幅值级数

Keywords

fiber optic transmission systembipolar signalDCDMalternative signalvoltage level

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