Measurement of the bit-error rate of an adaptive optics, free-space laser communications system, part 2: multichannel configuration, aberration characterization, and closed-loop results

2005 ◽  
Vol 44 (9) ◽  
pp. 096003 ◽  
Author(s):  
Robert K. Tyson
Keyword(s):  
Adaptive Optics ◽  
Bit Error Rate ◽  
Error Rate ◽  
Free Space ◽  
Closed Loop ◽  
Laser Communications ◽  
System Part ◽  
Communications System

Terrestrial Free Space Optic Propagation Analysis Considering Malaysia Weather Condition

2012 ◽  
Author(s):  
Wan Rizal Hazman Wan Ruslan ◽  
Sevia Mahdaliza Idrus ◽  
Arnidza Ramli ◽  
Norhafizah Ramli ◽  
Abu Sahmah Mohd Supa’at ◽  
...  
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Free Space ◽  
Weather Condition ◽  
Q Factor ◽  
Performance Characterization ◽  
Space Optics ◽  
Terrestrial System ◽  
Data Rates ◽  
Free Space Optic

Pemantulan cahaya matahari oleh cermin atau dikenali sebagai heliograf adalah kaedah awal komunikasi optik wayarles (OWC). Sewajarnya, sistem komunikasi moden mendedahkan kadar data yang tinggi di samping kualiti perkhidmatan yang lebih baik berbanding kaedah terdahulu. Sistem komunikasi optic wayarles mempunyai banyak kebaikan dimana ia adalah penting untuk sistem daratan, sebagai contoh penggunaan Optik Ruang Bebas (FSO) di kawasan luar. Di dalam kertas kerja ini, gambaran dan pencirian prestasi sistem Optik Ruang Bebas seperti pelemahan, kadar bit kesalahan (BER), faktor Q dan jenis pengesan yang berguna untuk pengesanan dalam sistem FSO dibentangkan. Sistem telah direkabentuk dan disimulasi untuk perincian prestasi dengan mengambil kira kawasan Subang. Kata kunci: Pelemahan; kadar bit kesalahan; pengesan foto; faktor Q; sistem daratan The reflection of sunlight by mirrors or known as the heliograph is an early method of optical wireless communication (OWC). Naturally, modern communication system reveals much higher data rates with better quality of service (QoS) compared to those ancient methods. There are many advantages of OWC which are important for a terrestrial system for example the usage of an outdoor free space optics (FSO) system. In this paper, a description and system performance characterization of the FSO such as attenuation, bit error rate (BER), Q factor and the type of detectors that are highly useful for detection in FSO systems are presented. The system are designed and simulated for performance characterization considering Subang terrestrial. Key words: bit error rate; photodetector; Q factor; terrestrial system

Influence of Pointing Error on Bit Error Rate of Free Space Optics System at Sea

2016 ◽  
Vol 36 (9) ◽  
pp. 0901001
Author(s):  
王红星 Wang Hongxing ◽  
宋博 Song Bo ◽  
吴晓军 Wu Xiaojun ◽  
刘敏 Liu Min
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Free Space ◽  
Free Space Optics ◽  
Pointing Error ◽  
Space Optics
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