Purnomo Sidi Priambodo, - and Ucuk Darusalam, - and Eko Tjipto Rahardjo, - (2015) Free-Space Optical Propagation Noise Suppression by Fourier Optics Filter Pinhole. International Journal of Optics and Applications, 5 (2). pp. 27-32.
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Abstract
Abstract Terrestrial free-space optical communications (FSOC) is potential to be applied in microcellular networks to provide larger bandwidth and higher cellular access. However, the terrestrial propagation quality degrades due to atmospheric absorption and turbulence. Turbulence-induced noise degrades signal to noise ratio (SNR) and increases bit error rate (BER), which finally degrades the overall signal quality at the receiver. In this paper, we propose to develop a method and conduct a laboratory experiment to suppress turbulence noise by using a pinhole as Fourier optics low-pass filter. It is shown that pinhole can improve BER very significantly from 10-7 down to 10-11, even in strong noisy medium propagation. Keywords Free-space optical communications, Optical turbulence, Noise propagation, Noise fading, Optical filters, Spatial Fourier transforms, Pinhole, Signal-to-noise ratio, Bit-error-rate, Noise suppression
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Artikel > Informatika dan Sistem Informasi |
| Depositing User: | BPSI Unas |
| Date Deposited: | 19 Aug 2017 22:49 |
| Last Modified: | 19 Aug 2017 22:49 |
| URI: | http://repository.unas.ac.id/id/eprint/47 |
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