全双工逆向调制自由空间激光通信系统的设计与分析
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摘要
逆向调制自由空间激光通信(MRR FSO)系统是将传统FSO链路的一个终端替换成逆向调制器(MRR)而构成的一个非对称FSO系统,因其功耗低、MRR端体积小和易安装等优点,成为自由空间光通信技术研究热点之一。针对MRR FSO系统现存在的捕获系统复杂、对准难度大等技术难题,在原有MRR FSO系统的基础上设计了一种全双工MRR FSO系统。其中光收发机端的共用光学天线模块采用较大孔径的反射式天文望远镜系统,主要用来减小光束发散角、增加接收孔径。MRR端采用单个大尺寸或多个小尺寸MRR器件,来提升反射光信号质量,并搭建室外长距离实验系统,对该MRR FSO系统进行测试,验证了该系统的合理性。结果表明,所设计的全双工MRR FSO系统在长距离全双工激光通信是可行的,为最终实现长距离全双工MRR FSO系统做铺垫,是未来MRR FSO技术的发展方向之一。
Modulating Retro-Reflector(MRR) Free Space Laser Communication(FSO) system is an asymmetric FSO system in which a terminal of a traditional FSO link is replaced by MRR.Because of its low power consumption,smaller MRR size and easy installation,etc.,it has become one of the hot topics in FSO technology research.A full duplex MRR FSO system is designed on the basis of existing MRR FSO system to solve technical problems such as the complexity of existing capture system and the difficulty of alignment.One of the optical transceiver sides of the common optical antenna module uses a larger aperture reflective telescope system to reduce the beam divergence angle and increase the receiving aperture.The MRR terminal uses a single large size or multiple small size MRR devices to enhance the reflected light signal quality.An outdoor long distance MRR FSO experiment system is built and tested to verify the rationality of the system.The results show that the designed full duplex MRR FSO system is feasible in long-distance full duplex laser communication,and it provides a foundation for the ultimate realization of long-distance full-duplex MRR FSO system,which is one of the future development directions of MRR FSO technology.
Modulating Retro-Reflector(MRR) Free Space Laser Communication(FSO) system is an asymmetric FSO system in which a terminal of a traditional FSO link is replaced by MRR.Because of its low power consumption,smaller MRR size and easy installation,etc.,it has become one of the hot topics in FSO technology research.A full duplex MRR FSO system is designed on the basis of existing MRR FSO system to solve technical problems such as the complexity of existing capture system and the difficulty of alignment.One of the optical transceiver sides of the common optical antenna module uses a larger aperture reflective telescope system to reduce the beam divergence angle and increase the receiving aperture.The MRR terminal uses a single large size or multiple small size MRR devices to enhance the reflected light signal quality.An outdoor long distance MRR FSO experiment system is built and tested to verify the rationality of the system.The results show that the designed full duplex MRR FSO system is feasible in long-distance full duplex laser communication,and it provides a foundation for the ultimate realization of long-distance full-duplex MRR FSO system,which is one of the future development directions of MRR FSO technology.
引文
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[22]百度百科.牛顿望远镜[EB/OL]http:∥baike.baidu.com/item/牛顿望远镜/8355304
[2]GHASSEMLOOY Z,POPOOLA W,RAJBHANDARI S.Optical Wireless Communications System and Channel Modelling with Matlab[M].United States:CRC Press,2012.
[3]BENTLEY E,MINH H L,PESEK J,et al.Modeling of Fog and Smoke Attenuation in Free Space Optical Communications Link,Under Controlled Laboratory Conditions[J].Journal of Lightwave Technology,2013,31(11):1720-1726.
[4]孟立新,刘坤明,张立中,等.野战激光通信中多口径发射与大口径接收试验研究[J].应用光学,2013,34(6):909-913.
[5]王远亮.自由空间光通信系统的关键技术研究[D].西安:西安电子科技大学,2007.
[6]吴笛.自由空间光通信系统的设计及性能分析[D].杭州:浙江大学,2007.
[7]张来线,孙华燕,樊桂花,等.猫眼逆向调制自由空间激光通信技术的研究进展[J].中国光学,2013,6(5):681-691.
[8]STOTTS L B,STADLER B.Free Space Optical Communications:Coming of Age[J].Proceedings of SPIE-The International Society for Optical Engineering,2008:69510W.
[9]孙华燕,张来线,赵延仲,等.逆向调制自由空间激光通信技术研究进展[J].激光与光电子学进展,2013,50(4):30-38.
[10]GOETZ P G,RABINOVICH W S,MAHON R,et al.Modulating Retro-Reflector Lasercom Systems for Small Unmanned Vehicles[J].IEEE Journal on Selected Areas in Communications,2012,30(5):986-992.
[11]GILBREATH G C,RABINOVICH W S,MEEHAN T J,et al.Large-aperture Multiple Quantum Well Modulating Retroreflector for Free-space Optical Data Transfer on Unmanned Aerial Vehicles[J].Optical Engineering,2001,40(7):1348-1356.
[12]PETER G G,WILLIAM S R,MAHON R,et al.Modulating Retro-reflector lasercom Systems at the Naval Research Laboratory[C]∥Military Communications Conference,2010-Milcom,IEEE,2011:1601-1606.
[13]GOETZ P G,RABINOVICH W S,MAHON R,et al.Modulating Retro-Reflector Devices and Current Link Performance at the Naval Research Laboratory[C]∥IEEE Military Communications Conference,2007:1-7.
[14]GOETZ P G,FUNK E E,MAHON R,et al.Quadrature Amplitude Modulation in Modulating Retroreflector System[J].Electronics Letters,2003,39(20):1463-1464.
[15]丁德强,柯熙政.非对称回复反射自由空间光通信链路性能[J].应用科学学报,2010,28(4):337-341.
[16]丁元明,孔婉琦,王雪.水下调制回复反射光通信的链路性能研究[J].计算机仿真,2013,30(5):195-198.
[17]张鹏,王天枢,杨国伟,等.全双工逆向调制回复空间光通信系统性能评价[J].红外与激光工程,2015,44(8):2506-2510.
[18]GAO J L.Optical Retroreflector-based Sensor Networks for In-situ Science Applications[C]∥IEEE Aerospace Conference,2003:3_1295-3_1302.
[19]SHAY T M,MACCANNELL J A,GARRETT C D,et al.First Experimental Demonstration of Full-duplex Communication on a Single Laser Beam[J].Proceedings of SPIEThe International Society for Optical Engineering,2004,5160(2):129-142.
[20]FARESAit Salma,ADACHI Fumiyuki.Mobile and Wireless Communications Network Layer and Circuit Level Design Part 3[J/OL].http:∥In-Tech Web.Org.
[21]马骏,朱日宏,陈帆,等.基于二向色镜45°入射的光谱合成装置及方法[P],2016.
[22]百度百科.牛顿望远镜[EB/OL]http:∥baike.baidu.com/item/牛顿望远镜/8355304