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Monday, July 6, 2020 | History

1 edition of Master data base for optical turbulence research in support of airborne laser found in the catalog.

Master data base for optical turbulence research in support of airborne laser

Master data base for optical turbulence research in support of airborne laser

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Published by Air Force Research Laboratory, Space Vehicles Dirctorate in Hanscom AFB, MA .
Written in English

    Subjects:
  • Atmospheric turbulence.

  • Edition Notes

    StatementAllan J. Bussey ... [et al].
    SeriesAFRL-VS-TR -- 2000-1236., E.R.P -- no. 1236., Environmental research papers (Hanscom AFB, Mass.) -- no. 1236.
    ContributionsBussey, Allan J., Air Force Research Laboratory (Hanscom AFB, Mass.). Space Vehicles Directorate.
    The Physical Object
    Paginationvi, 28 p. :
    Number of Pages28
    ID Numbers
    Open LibraryOL16104703M

    Master Data Base for Optical Turbulence Research in Support of Airborne Laser on ResearchGate, the professional network for scientists. A master laser provides a linearly polarized, narrow-linewidth signal that is split into five channels. (ExPERT), the Master Database for Optical Turbulence Research in Support of the Airborne Laser, the Global Aerosol Data Set (GADS), and the Directed Energy Environmental Simulation Tool (DEEST) in conjunction with Air Force Weather Agency.

    Other possible optical techniques may utilize characterization of the laser beam distortion or statistics of the atmospheric turbulence. If you were to use the HEL technology in your approach, challenges will include avoidance of stray light from the HEL and speed of response of the AO system as well as aberration measurement and compensation. Uncover methods to beat resolution limitations introduced on by atmospheric turbulence in Imaging Through Turbulence. This palms-on book utterly discusses the character of turbulence outcomes on optical imaging strategies, strategies used to beat these outcomes, effectivity analysis methods, and advisor examples of effectivity.

    Instructor Biographies: Mr. Bartell (BS US Air Force Academy, MS University of Arizona Optical Sciences Center) is currently a Research Physicist with the Air Force Institute of Technology’s Center for Directed Energy where he leads the development of the High Energy Laser End-to-End Operational Simulation (HELEEOS) model. Prior to his affiliation with AFIT Mr Bartell was previously employed with Veridian . Onboard Lidar Detects Turbulence, Volcanic Ash Near and Far Short- and midrange lidar systems for planes can deliver strong data for automatic correction maneuvers, while long-range systems that track potentially dangerous atmospheric conditions miles away are still being researched.


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Master data base for optical turbulence research in support of airborne laser Download PDF EPUB FB2

(Fiorino et al., ) The correlated optical turbulence profile in HELEEOS comes from the data collected in the Master Database for Optical Turbulence Research in Support of Airborne Laser.

A Master Data Base was assembled in support of the Airborne Laser Program (ABL). The database consists of two major tables of data, several forms to facilitate data entry and viewing, some queries of the database, and some reports based on the database.

HELEEOS uses the scaling laws of the Scaling the High energy laser And Relay Engagements (SHaRE) toolbox which is anchored to the wave optics code WaveTrain and all significant degradation effects, including thermal blooming due to molecular and aerosol absorption, scattering extinction, and optical turbulence, are represented in the model.

Worldwide seasonal, diurnal, and geographical variability in these parameters is accessed from probability density function (PDF) databases using a variety of recently available resources to include the Extreme and Percentile Environmental Reference Tables (ExPERT), the Master Database for Optical Turbulence Research in Support of the Airborne Laser, and the Global Aerosol Data Set.

Extreme and Percentile Environmental Reference Tables (ExPERT) [2] the Master Database for Optical Turbulence Research in Support of the Airborne Laser [3] the Global Aerosol Data Set (GADS) [4], and Air Force Weather Agency numerical weather forecasting data. Worldwide seasonal, diurnal, and geographical variability in these parameters is accessed from probability density function (PDF) databases using a variety of recently available resources to include the Extreme and Percentile Environmental Reference Tables (ExPERT), the Master Database for Optical Turbulence Research in Support of the Airborne Laser, and the Global Aerosol Data Set Cited by: Optical turbulence research contributes to improved laser communications, adaptive optics, and long-range imaging systems.

This paper presents experimental measurements of scintillation and focal spot displacement to obtain optical turbulence information along a near-horizontal km free-space laser propagation path.

Calculated values for the refractive index structure constant (C2n) and. database, the Master Database for Optical Turbulence Research in Support of the Airborne Laser 3, the Global Aerosol Data Set (GADS) 4, and Air Force Weather Agency.

Introduction. Airborne LiDAR is becoming an important technology for the acquisition of highly accurate dense point cloud. Nowadays, the latest devices, such as the Leica ALS70 LiDAR system, can provide a lateral accuracy of better than 12 cm and a vertical accuracy of better than 7 cm at a typical flying height of m (Leica Inc., ).The density of an airborne point cloud is closely Cited by: Worldwide seasonal, diurnal, and geographical spatial-temporal variability in key climatological parameters is organized into probability density function databases in HELEEOS using a variety of recently available resources to include the Extreme and Percentile Environmental Reference Tables (ExPERT) for sites worldwide, the Surface Marine Gridded Climatology database which providing coverage over all ocean areas, the Master Database for Optical Turbulence Research in Support.

A Fast Two-Stream-Like Multiple-Scattering Method for Atmospheric Characterization and Radiative Transfer ) database, the Master Database for Optical Turbulence Research in Support of the Airborne Laser Jr., Master data base for optical turbulence research in support of airborne laser.

Air Force Cited by: 3. Climate Change: Anticipated Effects on High-Energy Laser Weapon Systems in Maritime Environments the Master Database for Optical Turbulence Research in Support of Airborne Laser (Bussey et al. ), the Global and G. Jumper, Master data base for optical turbulence research in support of airborne laser.

AFRL-VS-TR Cited by: 5. optical turbulence data of the Master Database for Optical Turbulence Research in Support of the Airborne Laser. The optical turbulence database is a direct compilation of many worldwide nighttime thermosonde campaigns.

Each climatological Cn 2 profile is tailored to individual sites by distinctly referencing the optical turbulence database based on user-selected surface relative humidities.

Worldwide seasonal, diurnal, and geographical variability in these parameters is accessed from probability density function (PDF) databases using a variety of recently available resources to include the Extreme and Percentile Environmental Reference Tables (ExPERT), the Master Database for Optical Turbulence Research in Support of the Airborne Laser.

It combines the extensive climatological record of the ExPERT database with the optical turbulence data of the Master Database for Optical Turbulence Research in Support of the Airborne Laser.

The optical turbulence database is a direct compilation of. PROCEEDINGS VOLUME Atmospheric Propagation of Electromagnetic Waves II.

Editor(s): Ensemble forecasting of high-impact stratospheric optical turbulence Author(s): The effect of the jet-stream on the intensity of laser beams propagating along slanted paths in the upper layers of the turbulent atmosphere.

Tables (ExPERT), the Master Database for Optical Turbulence Research in Support of the Airborne Laser, and the Global Aerosol Data Set (GADS). Global Aerosol Data Set by Kopke¨ et al.

() the available ground measurements. to calculate the aerosol. • This work is sponsored through a contract with Air Force Research Laboratory, Directed Energy Directorate, Starfire Optical Range (AFRL/RDS) • Contract #FAC • Capt Doug MacDonald, 1Lt Michael Paul, Dr.

Donald Wittich • Development of the CFD-AO capability sponsored by the Air Force Research Laboratory,File Size: 3MB.

Coherent laser radar performance for general atmospheric refractive turbulence Rod G. Frehlich and Michael J. Kavaya The signal-to-noise ratio (SNR) and heterodyne efficiency are investigated for coherent (heterodyne detection) laser radar under the Fresnel approximation and general conditions.

This generality includes. The feasibility of laser airborne data links was demonstrated in the mid's by the U.S. Air Force Research Laboratory Laser Airborne Communications Experiment (HAVE LACE) Program.

This program developed and tested two laser communications terminals that operated at by:. The performance of long distance imaging systems is typically degraded by phase errors imparted by atmospheric turbulence.

In this paper we apply coherent imaging methods to determine, and remove, these phase errors by digitally processing coherent recordings of the image data. In this manner we are able to remove the effects of atmospheric turbulence without needing a conventional adaptive.The book discusses digital Fourier transforms (FT), FT-based operations, multiple methods of wave-optics simulations, sampling requirements, and simulations in atmospheric turbulence.

This book will benefit optical scientists and engineers at all levels as a guide for FT-based data analysis, imaging system analysis, and wave-optics simulations.atmosphere. In this research, an analytical study on the atmospheric turbulence effects on the optical signals is a achieved. Turbulence can be described as a random mixing of air particles in the atmosphere due to either rapid or small-scale spatial and temporal refractive index fluctuations in.