File:Computer simulation of wave propagation through turbulent media (IA computersimulati1094530843).pdf
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Summary[edit]
Computer simulation of wave propagation through turbulent media ( ) | ||
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Author |
Davis, Charles A. |
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Title |
Computer simulation of wave propagation through turbulent media |
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Publisher |
Monterey, California. Naval Postgraduate School |
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Description |
This research used Huygens-Fresnel wave optics computer simulations to investigate the effects of high turbulence strength and inner scale on the normalized irradiance variance and coherence length of electromagnetic waves propagating through a turbulent atmosphere. These investigations developed several guidelines for validity of propagation simulations employing a numerical, split-step, Huygens-Fresnel, method, and within these guidelines, considered five types of turbulence spectrum inner scale: (1) zero inner scale, (2) Gaussian inner scale, (3) Hill's and (4) Frehlich's viscous-convective enhancement inner scales, and (5) turbulence spectrum truncation from the discrete grid representation. The simulation results showed that the normalized irradiance variance generally decreased (-30%) below the zero inner scale values in the Rytov regime with increasing inner scale size, but increased monotonically in the saturation regime, and agreed within 2% of the Rytov- Tatarski predictions at low turbulence strengths. The E-field coherence length in a spatially confined beam, with either spherical or plane wave divergence and zero inner scale, followed the Rytov-Tatarski-Fried predictions in the Rytov regime, but departed from the theory in the saturation regime. Increasing inner scale size modified this finite beam behavior by raising the coherence length (up to -50%) in the saturation regime. Subjects: NA |
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Language | English | |
Publication date |
June 1994 publication_date QS:P577,+1994-06-00T00:00:00Z/10 |
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Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
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Accession number |
computersimulati1094530843 |
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Source | ||
Permission (Reusing this file) |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted. |
Licensing[edit]
Public domainPublic domainfalsefalse |
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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current | 06:14, 16 July 2020 | 1,275 × 1,650, 186 pages (5.47 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection computersimulati1094530843 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #12068) |
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Short title | Computer simulation of wave propagation through turbulent media |
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Author | Davis, Charles A. |
Software used | Davis, Charles A. |
Conversion program | |
Encrypted | no |
Page size |
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Version of PDF format | 1.4 |