| FSO数字脉冲调制方法的符号结构分析 |
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| 引用本文： | 程刚,王红星,孙晓明,朱银兵,张铁英.FSO数字脉冲调制方法的符号结构分析[J].烟台大学学报(自然科学与工程版),2007,20(1):31-34. |
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| 作者姓名： | 程刚 王红星 孙晓明 朱银兵 张铁英 |
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| 作者单位： | 海军航空工程学院,电子工程系,山东,烟台,264001 |
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| 摘 要： | 研究了开关键控(OOK)、脉冲位置调制(PPM)、脉冲间隔调制(PIM)和双头脉冲间隔调制(DH-PIM)等常用数字脉冲调制方式中的符号结构,给出了相应的公式及数学表达式,揭示了各种调制波形的映射规律和内在联系,证明了对于给定信源其每比特分辨率二进制码组的信源码值和最高有效位(MSB)是确定映射各种数字脉冲调制符号结构的关键.
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| 关 键 词： | 无线光通信 调制方式 符号结构 信源码值 |
| 文章编号： | 1004-8820（2007）01-0031-04 |
| 收稿时间： | 2006-05-07 |
| 修稿时间： | 2006-05-07 |
Structure Study of Modulation Waveforms in Optical Wireless Communications |
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| CHENG Gang,WANG Hong-xing,SUN Xiao-ming,ZHU Yin-bing,ZHANG Tie-ying.Structure Study of Modulation Waveforms in Optical Wireless Communications[J].Journal of Yantai University(Natural Science and Engineering edirion),2007,20(1):31-34. |
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| Authors: | CHENG Gang WANG Hong-xing SUN Xiao-ming ZHU Yin-bing ZHANG Tie-ying |
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| Institution: | Department of Electronic Engineering, Naval Aeronautical Engineering Institute, Yantai 264001, China |
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| Abstract: | The symbol structures of OOK,PPM,PIM and DH-PIM waveforms for optical wireless communication systems are examined,and some mistakes are found in other literatures.Particularly,the corresponding described expression or formula(1)-(6) about them are presented.It is shown that for a given resource,the decimal value of the input code word and the most significant bit(MSB) at M-bit resolution are the keys for the structure of every mapped symbol. |
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| Keywords: | optical wireless communication modulation scheme symbol structure source weight |
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