| 大气激光通信中的偏振调制性能 |
| |
| 引用本文： | 刘丹,刘智,方韩韩. 大气激光通信中的偏振调制性能[J]. 强激光与粒子束, 2014, 26(3): 039002-311. DOI: 10.3788/HPLPB201426.039002 |
| |
| 作者姓名： | 刘丹 刘智 方韩韩 |
| |
| 作者单位： | 1.长春理工大学 光电工程学院, 长春 1 30022; |
| |
| 摘 要： | 为充分证明偏振移位键控可有效抑制大气湍流等因素的影响这一观点,对目前大气激光通信系统中广泛采用的几种强度调制和偏振移位键控技术进行详细的分析研究,从各调制方式的功率利用率、带宽需求、传输容量以及差错性能几个方面进行对比。研究结果表明,各调制方式各有千秋,不能一概而论。综合各方面性能考虑,偏振移位键控较其他几种强度调制方式更具优越性,其具有最大传输容量、最小的带宽需求和接收误码率。由此可见,偏振调制方式更适合应用于大气激光通信。
|
| 关 键 词： | 光通信 调制方式 偏振移位键控 误码率 |
| 收稿时间： | 2013-10-12 |
Polarization modulation properties of atmospheric laser communication |
| |
| Affiliation: | 1.College of Photo-electronic Engineering,Changchun University of Science and Technology,Changchun 130022,China;2.College of Electronic Information Engineering,Changchun University of Science and Technology,Changchun 130022,China |
| |
| Abstract: | To fully demonstrate the view that polarization modulation can effectively suppress the influence of atmospheric turbulence，this paper analyzes polarization shift keying and several kinds of intensity modulation which are widely used in atmospheric laser communication systems. The comparative study of various modulation modes contains of power utilization, bandwidth requirement, transmission capacity and error performance. The results show that PolSK is more superior to any other kinds of intensity modulation mode when we consider all aspects of the performance. It has the maximum transmission capacity, the smallest bandwidth and receiving bit error rate. Thus, the polarization modulation is more suitable to be used in atmospheric laser communication. |
| |
| Keywords: | optical communication modulation method polarization shift keying bit error rate |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载免费的PDF全文 |
|
