Abstract

The intensity statistics of light pulses in an atmospheric communication link are studied here for the case of a finite (nonpoint) detector aperture. The calculation of the statistics of the pulse intensities averaged over the aperture is performed by using a discrete aperture model and applying the multidimensional lognormal distribution. The results of the numerical calculations demonstrate the dependence of the level-crossing probability on aperture radius, number of pulses, and the length of a pulse sequence. The level-crossing probabilities were measured experimentally and found to be in close agreement with the theoretical values.

© 1988 Optical Society of America

Level crossing and fading probabilities in an atmospheric communication link for a non-Markov process

I. Last, M. Tamir, U. Halavee, and E. Azoulay
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Probability density of aperture-averaged irradiance fluctuations for long range free space optical communication links

Stephen D. Lyke, David G. Voelz, and Michael C. Roggemann
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Aperture-averaged spectral correlations of beams in a turbulent atmosphere

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Z. Azar, H. M. Loebenstein, G. Appelbaum, E. Azoulay, U. Halavee, M. Tamir, and M. Tur
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Aperture averaging effects on the probability density of irradiance fluctuations in moderate-to-strong turbulence

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