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Proceedings Paper

Analysis of pulse fluctuations in random media
Author(s): Reuven Mazar; Alexander Bronshtein; I-Tai Lu
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Paper Abstract

The dispersive properties characteristic to random media cause distortions in the propagating signal, particularly in pulse broadening and time delay. Theoretical analysis of pulsed signal propagation is usually based on spectral decomposition of the time-dependent signal in order to solve a reduced equation for the time-harmonic field. Consequently the space-time correlation properties are expressed as spectral integrals of the statistical moments of the wave field for different frequencies and different positions. For example the average shape of the signal intensity can be obtained from the two-frequency mutual coherence function, while the deviations from the average values can be estimated from the analysis of the fourth order spectral statistical moment. In this work we present a new reference-wave method and apply it to solving the equations governing propagation of the two-frequency mutual coherence function, and the fourth order multifrequency statistical moment.

Paper Details

Date Published: 27 January 2004
PDF: 9 pages
Proc. SPIE 5160, Free-Space Laser Communication and Active Laser Illumination III, (27 January 2004); doi: 10.1117/12.505475
Show Author Affiliations
Reuven Mazar, Ben-Gurion Univ. of the Negev (Israel)
Alexander Bronshtein, Ben-Gurion Univ. of the Negev (Israel)
I-Tai Lu, Polytechnic Univ. (United States)


Published in SPIE Proceedings Vol. 5160:
Free-Space Laser Communication and Active Laser Illumination III
David G. Voelz; Jennifer C. Ricklin, Editor(s)

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