基于DCDM的FSO通信系统设计  

Design of FSO communication system based on DCDM

作　　者：陈翠竹[1] 陈新桥[1] 段中航[1] 王瑞东[1] 张震[1] 

机构地区：[1]中国传媒大学信息工程学院,北京100024

出　　处：《光通信技术》2013年第9期48-50,共3页Optical Communication Technology

摘　　要：提出了一种用于自由空间光通信系统(FSO)的新的光复用技术,即占空比复用技术(DCDM),分析了DCDM的复用与解复用原理,采用Matlab设计了DCDM的解复用器,同时利用optisytem和MATLAB联合仿真技术,设计了一个采用DCDM的FSO传输系统,验证了DCDM在无线通信系统中的可行性。给出了FSO信道的传输距离、传输损耗和噪声对信号DCDM解复用的影响规律。The paper introduces a new technology base on the free space optical communication system（FSO） which named Duty Cycle Division Multiplexing （DCDM）.Multiplexing and demultiplexing principle of DCDM are analyzed, design the demultiplexer of DCDM system by using MATLAB. In order to verify the feasibility of DCDM, Here we design a optical fiber transmission system which base on DCDM of three users by joint simulation with optisystem and MATLAB.simulation result shows the feasibility of the system.The effect of FSO channel transmission distance, transmission loss and noise on the DCDM signal demultiplexing are introduced.

关 键 词：自由空间光通信(FSO) 占空比复用(DCDM) OPTISYSTEM 解复用器 MATLAB 

分 类 号：TN929.12[电子电信—通信与信息系统]