摘要
提出了一种新的调制方法——标识组合脉冲位置调制(Flag-Compound Pulse Position Modula-tion,FCPPM)。详细阐述了FCPPM调制的原理,比较了单位传信率、带宽效率和信号冗余度,用Matlab对编译码进行了仿真。分析和仿真结果表明,与PPM调制方式相比,FCPPM调制技术具有单位传信率和带宽效率高等优点;与MPPM调制方式相比,FCPPM调制方式的编译码简单且容易实现。
A new modulation, Flag Compound Pulse Position Modulation（FCPPM）, is developed in this paper. The properties of the FCPPM, such as unit information transmitting rate, bandwidth efficiency and signal redundancy, are analyzed. Finally, the coding and decoding of FCPPM is simulated on the platform of Matlab. Simulation results show that this modulation has the higher unit information transmitting rate and the better bandwidth efficiency than PPM, and that compared with MPPM, the coding and decoding of this modulation is much easier.
出处
《光通信技术》
CSCD
北大核心
2008年第11期44-47,共4页
Optical Communication Technology
基金
国家重点实验室基金项目(9140C5301010701)资助
陕西省自然基金项目(2007F10)资助
关键词
无线光通信
标识组合脉冲位置调制
单位传信率
带宽效率
信号冗余度
optical wireless communications
flag compound pulse position modulation
unit information transmitting rate
bandwidth efficiency
signal redundancy
