摘要
基于紫外通信系统平台对应用于移动通信和光移动通信的调制方式开关键控(OOK)、脉冲位置键控(PPM),以及新兴的差分脉冲位置键控(DPPM),数字脉冲间隔调制(DP IM)进行了性能仿真,以OOK为基准,比较了四种调制方式的平均发射功率和需求带宽参数;同时对OOK、PPM和DPPM的调制解调方式进行改进和实现,无需进行字同步;基于搭建好的系统平台,实现了上述改进后四种调制方式的实现。
Based on the ultraviolet communication system bed, the performance of four mod- ulation methods (00K,PPM,DPPM,DPIM)which are fit for the mobile communication is ana- lyzed. OOK as the reference, transmission power and Bandwidth requirement of these four meth- ods are compared and improvement in OOK, PPM, and DPPM modulation are made without word synchronization. The mentioned modulation methods are realized based on this bed.
出处
《光电子技术》
CAS
北大核心
2011年第3期188-191,共4页
Optoelectronic Technology
基金
中央高校基本科研业务费专项资金资助(2009RC404)