Progress of Free-Space Optical Communication Technology Based on Modulating Retro-Reflector

2013 ◽  
Vol 50 (4) ◽  
pp. 040004 ◽  
Author(s):  
孙华燕 Sun Huayan ◽  
张来线 Zhang Laixian ◽  
赵延仲 Zhao Yanzhong ◽  
郑勇辉 Zheng Yonghui
Keyword(s):  
Communication Technology ◽  
Optical Communication ◽  
Free Space ◽  
Free Space Optical Communication ◽  
Free Space Optical ◽  
Space Optical Communication

Application scheme and performance analysis of free space optical communication technology in INMARSAT

2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Zhongli Yi ◽  
Fuzhai Wang ◽  
Lianjie Jin ◽  
Yueying Zhan
Keyword(s):  
Communication Technology ◽  
Wavelength Division Multiplexing ◽  
Optical Communication ◽  
Communication System ◽  
Free Space ◽  
Transmission Rate ◽  
Free Space Optical Communication ◽  
Free Space Optical ◽  
Error Vector Magnitude ◽  
Space Optical Communication

Abstract In this study, we propose an application scheme of free space optical communication technology in INMARSAT, and propose a 1.12 Tbit/s coherent free-space optical (FSO) communication system based on wavelength division multiplexing (WDM) and polarization-multiplexing quadrature phase shift keying (PM-QPSK) modulation technology. Based on optisystem software platform, the spectrum, bit error rate (BER), received power, error vector magnitude (EVM), and receiver sensitivity of the edge and middle channels of the system are analyzed. The simulation results show that the transmission rate and channel capacity of INMARSAT communication system are greatly improved by selecting the channel spacing and transmission environment reasonably.

Progress in free space optical communication technology based on cat-eye modulating retro-reflector

2013 ◽  
Vol 6 (5) ◽  
pp. 681-691 ◽  
Author(s):  
张来线 ZHANG Lai-xian ◽  
孙华燕 SUN Hua-yan ◽  
樊桂花 FAN Gui-hua ◽  
赵延仲 ZHAO Yan-zhong ◽  
郑勇辉 ZHENG Yong-hui
Keyword(s):  
Communication Technology ◽  
Optical Communication ◽  
Free Space ◽  
Free Space Optical Communication ◽  
Free Space Optical ◽  
Space Optical Communication

Simulation modeling of free space optical communication system

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ajay Sharma ◽  
Rajinder Singh Kaler
Keyword(s):  
Optical Communication ◽  
Free Space ◽  
Simulation Modeling ◽  
Additive White Gaussian Noise ◽  
Wireless Channel ◽  
Free Space Optical Communication ◽  
Optical Wireless ◽  
Free Space Optical ◽  
Wireless Signal ◽  
Space Optical Communication

Abstract The optical wireless communication has been designed by developing a model with the support of MATLAB simulator using Simulink where channel considered to be a free space. In this model, Additive White Gaussian Noise (AWGN) channel has used to analyze bit error rate (BER) and power loss of optical wireless signal at receiver. The consequence due to turbulence in atmosphere of free space on transmitted signal has examined. The BER and signal power have extremely ruined on rigorous atmospheric unstable condition even for a short distance in an optical wireless channel. The BER of less than 10−3 has been achieved for free space optical communication considered to be an excellent BER for FSO.

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