| 无线光通信脉冲位置调制的符号同步技术 |
| |
| 引用本文： | 王红星,孙晓明,周旻.无线光通信脉冲位置调制的符号同步技术[J].电子科技大学学报(社会科学版),2008(3). |
| |
| 作者姓名： | 王红星 孙晓明 周旻 |
| |
| 作者单位： | 海军航空工程学院电子工程系;海军航空工程学院电子工程系 山东烟台;山东烟台; |
| |
| 摘 要： | 讨论了PPM序列的符号同步原理;在分析随机PPM序列的精确符号同步概率上限的基础上,给出了一种在PPM序列中插入同步信号来实现PPM精确符号同步的方案及其数字逻辑电路实现。该方案通过改变PPM调制序列结构,按照一定的间隔在PPM序列中插入脉冲时隙肩并肩的2个相邻符号作为同步符号,通过对同步符号的检测来提取同步信号。理论及仿真实验表明,该方案能实现PPM精确符号同步。
|
| 关 键 词： | 无线光通信 PPM序列 脉冲位置调制 符号同步 |
Symbol Synchronization of Pulse Position Modulation for Optical Wireless Communications |
| |
| WANG Hong-xing,SUN Xiao-ming, ZHOU Min.Symbol Synchronization of Pulse Position Modulation for Optical Wireless Communications[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2008(3). |
| |
| Authors: | WANG Hong-xing SUN Xiao-ming ZHOU Min |
| |
| Institution: | WANG Hong-xing,SUN Xiao-ming,, ZHOU Min (Department of Electronic Engineering,Naval Aeronautical Engineering Institute Yantai Sh,ong 264001) |
| |
| Abstract: | One of the most important issues of pulse position modulation (PPM) for optical wireless communications is the receiver symbol synchronization subsystem, in this paper, the basic principle of symbol synchronization for PPM sequence is discussed, and the upper limit of exact synchronization probability for random PPM sequence is analyzed. To solve this problem a new scheme of inserting synchronous back-to-back PPM symbols to the PPM sequence at intervals of certain symbols is presented, the synchronization s... |
| |
| Keywords: | optical wireless communications PPM sequence pulse position modulation symbol synchronization |
| 本文献已被 CNKI 等数据库收录！ |
