Laser Atmospheric Attenuation Tables for LTAS

Abstract

A description of the use of the program FASCODE to create tables of atmospheric attenuation coefficients and to incorporate them into the Laser Threat Analysis System (LTAS) is included in this report. FASCODE covers an incredible amount of atmospheric and light situations to compute the atmospheric attenuation coefficient. Incorporating FASCODE into LTAS would have been an enormous undertaking, and it would have slowed down the execution of LTAS considerably. The alternate approach that was taken included creating several tables of atmospheric attenuation coefficient only for the cases of interest to LTAS. These cases included nine laser wavelength lines, four atmospheric region models, four aerosol models, and five visibility ranges. The format of the tables is also described here as a reference, to facilitate adding more cases of interest for LTAS in the future.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1997
Accession Number
ADA325417

Entities

People

  • Brian J. Lund

Organizations

  • TASC, Inc

Tags

Communities of Interest

  • Air Platforms
  • Biomedical

DTIC Thesaurus Topics

  • Absorption
  • Abstracts
  • Air Force
  • Aircrafts
  • Altitude
  • Atmosphere Models
  • Atmospheres
  • Atmospheric Attenuation
  • Attenuation
  • Coefficients
  • Databases
  • Exponential Functions
  • Ground Level
  • Models
  • Photonic Metamaterials
  • Slant Range
  • Visibility

Readers

  • Aerosol Science/Aerosol Physics
  • Mycotoxin ecology in Amazonian ecosystems.
  • Strategic Security Studies

Technology Areas

  • Directed Energy