Laser Doppler Radar System Calibration and Rainfall Attenuation Measurements.

Abstract

The atmospheric attenuation and backscatter coefficients have been measured at the 10.6-micrometers wavelength of the CO2 laser in rainstorms. Data are presented to show the increase in attenuation coefficient with rainfall rate. Backscatter coefficients in rain and clear air are also presented. Data were collected on a 460-meter test range at Sudbury, Massachusetts. The experimental results can be used to evaluate the performance capabilities of CO2 coherent laser systems for making atmospheric velocity measurements. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1978
Accession Number
ADA062070

Entities

Organizations

  • RTX

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Analyzers
  • Atmospheric Attenuation
  • Atmospheric Motion
  • Carbon Dioxide Lasers
  • Detectors
  • Doppler Effect
  • Doppler Radar
  • Laser Beams
  • Laser Radar
  • Measurement
  • Meteorological Data
  • Radar
  • Scattering
  • Spectra
  • Surface Acoustic Waves
  • Wind Shear
  • Wind Velocity

Fields of Study

  • Physics

Readers

  • Atmospheric Science/Meteorology
  • Molecular Photonics/Laser Physics
  • Radar Systems Engineering.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers