光通信卷积码-误码测试系统设计及实验  

Design and experiment of convolutional code and BER testing system in wireless laser communications

作　　者：郭建中[1,2] 艾勇[2] 陈晶[2] 

机构地区：[1]武汉科技学院电子信息工程学院,武汉430073 [2]武汉大学电子信息学院,武汉430079

出　　处：《光通信技术》2010年第1期56-58,共3页Optical Communication Technology

摘　　要：设计并实现了卷积码-误码测试系统,以实验的方式研究了卷积码对光通信系统性能的改善作用,并完成了2.2km的无线光通信实验。实验结果表明,在无线光通信中,卷积码有良好的纠随机错误的能力,但对突发性错误的纠错能力较差。实验结果还表明,在传输速率低于100Mb/s时,由传输速率不同而引起的码间干扰的差别极其微弱。A system of convolutional code and BER tester is designed and implemented to study the improvement of the convolutional code brings to the wireless laser communications. It is a continuation of our previous work of BER tester, which is based on a SOPC method. The Experimental results demonstrate that the convolutional code is effective to correct random errors, however, is ineffective to correct burst errors. The Experimental results also show that the BER difference caused by bit rate is very slight when it is below 100Mbps.

关 键 词：无线光通信 卷积码 误码测试 外场实验 

分 类 号：TN929.11[电子电信—通信与信息系统]