摘要
本文介绍了光正交频分复用(OOFDM)技术及其系统的构造,并展示了Optisystem软件的光路仿真功能.以此为基础,给出了DD-OFDM基于Optisystem的光发送,光链路和光接收模块的仿真模型,模拟了直接检测(direct de-tection)结构下不同传输距离的系统性能.对接收到的信号进行处理,对传输性能SNR及误码率,星座图等参数进行分析,验证了DD-OFDM传输系统方案的可行性.
In this paper,we introduce Optical Orthogonal Frequency Division Multiplexing（OOFDM） modulation technique;furthermore show the simulation capabilities of Optisystem in optical communication.In this software,we address direct detection OFDM transmission over the optical links,including transmitter,optical links and receiver.The paper simulates performance in different transmission distances of direct detection structure,and provides the constellation of 4QAM in receiver,BER of B2B and 320km,verifies the feasibility of DD-OFDM transmission system.
出处
《天津理工大学学报》
2010年第4期48-50,57,共4页
Journal of Tianjin University of Technology
基金
天津市高等学校科技发展基金(2006BA30)
