摘要
研究了频域相位编解码光码分多址系统的性能。推导了在码位误差时系统误码率的数学公式。分析了在光功率,码位误差,码长,单极码和双极码情况下对OCDMA系统性能的影响。仿真结果表明:比较高的光功率、较长码字有利于改善系统性能,系统随码位误差增大而对系统影响愈大,双极性系统性能明显优于单极性OCDMA系统。
The paper has studied the performance of OCDMA system with spectrum-phase en/decoder. The analysis of impact on error of code position for OCDMA system, Gained the formula of BER of system under the case. The numerical result demonstrates the control of luminous power、structure of en/decoder and choice of code sequence, which are key to OCDMA system.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2003年第3期304-308,共5页
Journal of University of Electronic Science and Technology of China
基金
国家863计划项目
编号:2001AA122071
