RoF系统中OCS调制的色散特性研究  

Research on dispersion characteristic under OCS modulation in RoF system

作　　者：罗登 陈明[1] 聂娟[1] 唐剑[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《桂林电子科技大学学报》2013年第3期186-190,共5页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(61077036);广西自然科学基金(2011GXNSFB018069)

摘　　要：为了降低RoF系统中色散的影响,研究了基于OCS调制的RoF链路传输性能,并对不同基带码元传输脉冲抗色散能力进行了仿真。结果表明,高斯脉冲在光纤传输距离小于最大传输距离的1/2时,能够有效抵抗色散导致的码元时移效应,非归零码脉冲的抗色散能力相对比较稳定,适合长距离的传输。To reduce the dispersion effects in RoF system, the link transmission performance under OCS modulation was investigated and a simulation experiment aiming at comparing different baseband code transmission pulse ability in resisting chromatic dispersion was done. The results show that Gaussian pulse can effectively resist code time shifting effect induced by the dispersion when fiber transmission distance is less than half of maximum transmission distance. The non return to zero code pulse can resist dispersion stably, which is fit for long distance transmission.

关 键 词：ROF 色散 OCS 码元时移效应 

分 类 号：TN929.11[电子电信—通信与信息系统]