基于平衡检测法的光谱幅度编码系统的设计与仿真  

The design and simulation of SAC-OCDMA based on balanced detection

作　　者：韩笑 张兴周[1] 朱武增[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2010年第1期5-7,11,共4页Applied Science and Technology

摘　　要：多用户干扰(multiple access interference,MAI)一直是光码分多址通信系统所要解决的关键技术之一,基于平衡检测法的光谱幅度编码(spectral amplitude coding,SAC)方案的提出能够有效地消除MAI.该文介绍了平衡检测法的原理并将其应用到光谱幅度编码系统中,并应用光通信仿真软件Optisystem7.0对该系统进行了仿真,仿真结果直观地表明,该系统实现了在BER≤10-9时的无误传输,即消除了MAI.Multiple access interference （MAI） is always one of the main problems to be solved in the system of optical CDMA（OCDMA）. The proposal of SAC-OCDMA based on balanced detection can effectively suppress MAI. This paper presents the theory of balanced detection and its application to SAC （spectral-amplitude-coding）. Optisystem 7.0, the simulation software for optical communication, was used to simulate the systern. The result of simulation obviously indicates that this system can transfer data inerrably at BER=10^-9, meaning that MAI could be suppressed.

关 键 词：光谱幅度编码 多用户干扰 光纤布拉格光栅 

分 类 号：TN929.11[电子电信—通信与信息系统]