| fso中一种光载波外差dpsk系统的设计 |
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| 引用本文： | 王涵,张涛.fso中一种光载波外差dpsk系统的设计[J].无线通信技术,2011,20(3). |
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| 作者姓名： | 王涵 张涛 |
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| 作者单位： | 海南大学信息科学技术学院,海口,570228 |
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| 摘 要： | 介绍了自由空间光通信中的相干通信系统,通过对相干光通信中振幅键控(ASK),频移键控(FSK),相移键控(PSK),差分相移键控(DPSK)四种光载波相干调制方式性能的分析和比较,仿真结果得出PSK调制误码性能更好,提出了一种光载波外差差分相移键控(DPSK)系统.
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| 关 键 词： | 自由空间光通信 相干调制 dpsk |
A Laser Carrier Heterodyne DPSK System's Design in Free Space Optical Communications |
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| WANG Han
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ZHANG Tao.A Laser Carrier Heterodyne DPSK System's Design in Free Space Optical Communications[J].Wireless Communication Technology,2011,20(3). |
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| Authors: | WANG Han ZHANG Tao |
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| Affiliation: | WANG Han,ZHANG Tao (College of Information Science &Technology,Hainan University,Haikou 570228,China) |
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| Abstract: | A coherent communication system in the free space optical communications is introduced,through the amplitude shift keying(ASK),frequency shift keying(FSK),phase shift keying(PSK),differential phase shift keying(DPSK) four kinds of coherent optical carrier modulation analysis and comparison,the simulation results that PSK modulation has better error performance,then a laser carrier heterodyne differential phase shift keying(DPSK) system is proposed. |
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| Keywords: | free space optical communication coherent modulation differential phase shift keying |
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