Comparison of Radiometric and Chemometric Sensitivities for Heterodyne and Direct Detection DIAL

Abstract

The heterodyne / direct detection DIAL comparison (HD/DD DC) experiment series was conducted at Kirtland AFB, NM, to simultaneously characterize and compare the radiometric and chemical detection sensitivities of heterodyne and direct detection DIAL systems. The system developed by the Air Force Research Laboratory Directed Energy Directorate demonstrated the first known programmable and shot-to-shot wavelength-agile heterodyne DIAL measurements. The experiments studied radiometric issues, speckle mitigation through spread spectrum (modelocked) operation, and chemical detection sensitivities. The measurements were performed over horizontal paths at standoff ranges from 4 to 15 km, using both natural and man-made targets. Heterodyne and direct detection radiometric and chemometric results are presented and contrasted, and are compared with predictions from simulations and models.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2004
Accession Number
ADA429186

Entities

People

  • Anthony P. Peredo
  • Brian T. Kelly
  • Daniel C. Senft
  • Diego F. Pierrottet
  • James A. Dowling

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acousto-Optic Modulators
  • Air Force
  • Air Force Research Laboratories
  • Birds
  • Chemical Detection
  • Detection
  • Detectors
  • Directed Energy Weapons
  • Frequency
  • Frequency Shift
  • Laser Beams
  • Lasers
  • Measurement
  • Military Research
  • Simulations
  • Spectra
  • Spread Spectrum

Fields of Study

  • Physics

Readers

  • Marksmanship and Weaponry.
  • Optical Physics and Photonics.
  • Radar Systems Engineering.

Technology Areas

  • Directed Energy