NDLI: Theoretical and empirical based extinction coefficients for fog attenuation in terms of visibility at 850 nm

Content Provider	IEEE Xplore Digital Library
Author	Shah, S. Mughal, S. Memon, S.
Copyright Year	2015
Description	Author affiliation: Fac. of Eng., Sci. & Technol., Isra Univ., Hyderabad, Pakistan (Mughal, S.) \|\| Inst. of Inf. & Commun. Technol., Univ. of Sindh, Jamshoro, Pakistan (Shah, S.; Memon, S.)
Abstract	Free space optics (FSO) is the transmission of Infrared (IR) signals through LASER in free space with point to point link and receiving through photo diode. Now a days FSO is most preferable last mile solution. In last 15 years researchers focused for designing fog model which convert the visibility value in fog attenuation factor. In the literature two approaches, theoretical and empirical, were used for estimating fog attenuation factor. In theoretical approach fog attenuation formula were derived by using rigorous Mie scattering theory, six fog models based on theoretical approach were selected these are Kruse, Kim, Al Naboulsi advection and convection, Ferdinandov and Grabner models. These models convert the visibility statistics available on meteorological sites into predict specific optical attenuation. In empirical approaches, fog models were derived by a hardware setup form which visibility and optical power at both transmitting and receiving sides were measured statistically and a relation is obtained by applying regression analysis. Three different empirical based models were selected from the literature on the basis of their practical deployment such as continental fog, dense maritime fog and under controlled laboratory condition setup. Selected nine models including theoretical and empirical were simulated in Matlab and comparison results is discussed in this paper.
Starting Page	1
Ending Page	4
File Size	289108
Page Count	4
File Format	PDF
ISBN	9781509020133
e-ISBN	9781509004362
DOI	10.1109/ICET.2015.7389190
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-12-19
Publisher Place	Pakistan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Atmospheric modeling Optical attenuators Attenuation measurement Attenuation Mathematical model Optical scattering
Content Type	Text
Resource Type	Article

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