FSO中PS-QPSK调制系统分析
发布时间：2018-11-01 21:17
【摘要】：在自由空间光通信(FSO)系统中,由于先进的调制格式能大大提高频谱效率,并可以改善系统的传输容量而备受采用。在研究QPSK(正交相移键控)调制的基础上,对新型调制格式PS-QPSK(偏振切换正交相移键控)的调制和解调方案进行研究,并在新型光学仿真软件Optisystem平台下完成基于PS-QPSK调制格式的系统仿真,实现FSO系统中PS-QPSK调制系统的分析。通过仿真结果可以看出,该系统可以很好地实现PS-QPSK的调制和解调,具有很好的传输性能;当进行长距离传输时,系统的误码性能降低较小。因此,采用PS-QPSK调制格式的空间光通信系统具有可行性,适合长距离传输。
[Abstract]:In free-space optical communication (FSO) systems, advanced modulation formats can greatly improve the spectral efficiency and improve the transmission capacity of the system. Based on the study of QPSK (orthogonal Phase shift keying) modulation, the modulation and demodulation schemes of a new modulation format PS-QPSK (polarization switched orthogonal Phase shift keying) are studied. The system simulation based on PS-QPSK modulation format is completed on the platform of new optical simulation software Optisystem, and the analysis of PS-QPSK modulation system in FSO system is realized. The simulation results show that the system can realize the modulation and demodulation of PS-QPSK well and has good transmission performance. Therefore, the space optical communication system with PS-QPSK modulation format is feasible and suitable for long distance transmission.
【作者单位】： 吉林化工学院信息与控制工程学院;
【基金】：吉林省教育厅项目(2016134)
【分类号】：TN929.1
，
本文编号：2305122
[Abstract]:In free-space optical communication (FSO) systems, advanced modulation formats can greatly improve the spectral efficiency and improve the transmission capacity of the system. Based on the study of QPSK (orthogonal Phase shift keying) modulation, the modulation and demodulation schemes of a new modulation format PS-QPSK (polarization switched orthogonal Phase shift keying) are studied. The system simulation based on PS-QPSK modulation format is completed on the platform of new optical simulation software Optisystem, and the analysis of PS-QPSK modulation system in FSO system is realized. The simulation results show that the system can realize the modulation and demodulation of PS-QPSK well and has good transmission performance. Therefore, the space optical communication system with PS-QPSK modulation format is feasible and suitable for long distance transmission.
【作者单位】： 吉林化工学院信息与控制工程学院;
【基金】：吉林省教育厅项目(2016134)
【分类号】：TN929.1
，
本文编号：2305122
本文链接：https://www.wllwen.com/kejilunwen/xinxigongchenglunwen/2305122.html
