【作者】 张海滨； 宋文涛； 黄培中； 李荣玉；

【Author】 ZHANG Hai-bin, SONG Wen-tao, HUANG Pei-zhong, LI Rong-yu Dept. of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, China

【机构】 上海交通大学电子工程系；

【摘要】 本文对频谱相位编码(spectral phase encoding)OCDMA系统中的多址干扰(MAI)进行统计分析,作为以后进一步研究工作的理论基础。文章首先建立详尽的系统模型,并得出多址干扰的数学表达形式;在此基础之上,从集合平均值的角度对多址干扰进行统计分析;结果显示:理论上采用双极性纯随机序列作为地址码可以使多址干扰达到最小,而在实际应用中伪随机m序列作为地址码也使多址干扰趋向最小。更多还原

【Abstract】 This paper analyzes statistical characteristics of multi-access interferences (MAI) in spectral phase encoding optical code-division multiple access (SPE-OCDMA) system. First a system model, as well as the mathematic presentation of MAI, is constructed for SPE-OCDMA system in particular. Then we will derive the ensemble average of MAI as a method of statistical analysis. The results show that MAI is minimized if pure random sequences are used as address codes, and m sequences are appropriate substitutes for pure random sequences in practice.更多还原