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Ditemukan 2 dokumen yang sesuai dengan query
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Ucuk Darusalam, author
Filter spasial optik tersusun atas cone reflector dan pinhole untuk menekan efek beam wander dan spatial noise pada sisi penerima komunikasi FSO = The optical spatial filter composed of cone reflector and pinhole to suppress effects of beam wander and spatial noise on the receiver of FSO communications
Atmospheric turbulence is the major problem in FSO communications where beam wander and spatial noise modulation into optical propagation can cause severe problems result in performance degradation. Beam wander and spatial noise leads to fluctuations in signal intensity and maximum reception of noise on photodetector. Generally, spatial-diversity, time-diversity, cooperative diversity, photo...
Depok: Fakultas Teknik Universitas Indonesia, 2015
D2094
UI - Disertasi (Membership)  Universitas Indonesia Library
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Ucuk Darusalam, author
Noise suppression in the signal spectral induced by atmospheric turbulence on the fso (free-space optical) communications
Beam wander and spatial noise that are modulated on optical propagation produce noise modulation in the signal spectral before being received by a Photodetector (PD). In order to suppress noise modulation in the signal spectral, we present an Optical Spatial Filter (OSF) method that is composed of the cone reflector...
Depok: Faculty of Engineering, Universitas Indonesia, 2015
UI-IJTECH 6:4 (2015)
Artikel Jurnal  Universitas Indonesia Library