نتایج جستجو برای: free space optical communication
تعداد نتایج: 1527036 فیلتر نتایج به سال:
Modulating retro-reflectors (MRR) couple passive optical retro-reflectors with electro-optic modulators to allow free-space optical communication with a laser and pointing/acquisition/tracking system required on only one end of the link. In operation a conventional free space optical communications terminal, the interrogator, is used on one end of the link to illuminate the MRR on the other end...
Performance of a free-space optical communication system is influenced by atmospheric turbulence which degrades signal transmission quality. A gamma–gamma channel model employed to characterise this under weak-to-strong conditions. The proposed dual diffuser modulation using subtraction dual-wavelength concept combined with phase screen improve transmission. Its performances are compared conven...
One of the ultimate goals in next generation network design is to achieve an ubiquitous environment enabling connectivity between any wireless access system with optical fiber core network. Radio on Fiber (RoF) technology has been applied to realize a universal platform for transparently carrying various types of wireless services. By applying free-space optics (FSO) communication techniques co...
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