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Spectral density of laser beam scintillation in wind turbulence. part 1; theory
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Balakrishnan, A. V. |
| Copyright Year | 1997 |
| Description | The temporal spectral density of the log-amplitude scintillation of a laser beam wave due to a spatially dependent vector-valued crosswind (deterministic as well as random) is evaluated. The path weighting functions for normalized spectral moments are derived, and offer a potential new technique for estimating the wind velocity profile. The Tatarskii-Klyatskin stochastic propagation equation for the Markov turbulence model is used with the solution approximated by the Rytov method. The Taylor 'frozen-in' hypothesis is assumed for the dependence of the refractive index on the wind velocity, and the Kolmogorov spectral density is used for the refractive index field. |
| File Size | 783032 |
| Page Count | 34 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19980237447 |
| Archival Resource Key | ark:/13960/t1dk0c945 |
| Language | English |
| Publisher Date | 1997-04-01 |
| Access Restriction | Open |
| Subject Keyword | Lasers And Masers Hypotheses Stochastic Processes Turbulence Models Refractivity Spectra Velocity Distribution Laser Beams Kolmogorov Theory Weighting Functions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
