By N. Das
ISBN-10: 9535101706
ISBN-13: 9789535101703
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Johnston, R. A. & Lane, R. G. (1999). Fast simulation of a kolmogorov phase screen, Appl. Opt. 38(11): 2161–2160. 38 36 Optical Communications Systems Will-be-set-by-IN-TECH Hudson, R. D. (1969). Infrared System Engineering, John Wiley & Sons, New York. Ishimaru, A. (1969). Fluctuations of a focused beam wave for atmospheric turbulence probing, Proc. IEEE 57: 407–414. , Wilson, K. , Xu, G. & Lesh, J. (1997). Data analysis results from the GOLD experiments, Free-Space Laser Comm. Tech. IX, Vol.
3 the Log-Normal model is the most accepted in weak turbulence regimes for point receivers, and in all regimes of turbulence when aperture averaging takes place. Under weak turbulence regime the scintillation index, given by Eq. (52), can be expressed as 2 (108) σI2 ∼ = σln I, and normalizing the irradiance in the sense that I = 1, Eq. (72) reduces to ⎤ ⎡ σI2 2 ln I + 2 1 ⎥ ⎢ exp ⎣− P( I ) = ⎦. 9 −6 10 I −10 −55 −50 −45 −40 −35 −30 −25 −20 Popt [dBm] (a) Performance of OOK modulation for fixed threshold (solid line) and optimum threshold (dashed lines) receivers under different turbulence levels.
30(1): 269–275. Churnside, J. H. (1991). Aperture averaging of optical scintillations in the turbulent atmosphere, Appl. Opt. 30: 1982–1994. Churnside, J. H. & Frehlich, R. G. (1989). Experimental evaluation of log-normally modulated rician and ik models of optical scintillation in the atmosphere, J. Opt. Soc. Am. A 6(11): 1760–1766. Churnside, J. H. & Lataitis, R. J. (1990). Wander of an optical beam in the turbulent atmosphere, Appl. Opt. 29(7): 926–930. , Guarino, E. & Matsumoto, M. (2009). 28 Terabit/s (32x40 Gbit/s) WDM transmission system for free space optical communications, IEEE J.