MILLIMETER WAVE RADIOMETRIC DETECTION OF TARGETS OBSCURED BY FOLIAGE

Abstract

The problem of passive detection by millimeter wave radiometry of metallic targets obscured by foliage and other vegetation is defined and discussed. A model of the foliage obscuration situation is presented and evaluated on the basis of data collected in a field measurement program. Results obtained show the millimeter wave radiometric obscuration to be greater than the optical obscuration. Curve fitting techniques indicate a quadratic relationship between radiometric and optical obscuration; hence, the maximum range of a radiometric system will be reduced linearly with optical obscuration instead of theoretically with a square root relationship. Further refinements of the model are discussed and are to be included in a general foliage penetration model to be evaluated at a later date.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1968
Accession Number
AD0667962

Entities

People

  • Richard A. Mcgee

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Curve Fitting
  • Depression Angles
  • Detection
  • Electromagnetic Radiation
  • Electromagnetic Spectra
  • Emission
  • Measurement
  • Millimeter Waves
  • Photographs
  • Plastic Explosives
  • Radiation
  • Radiometry
  • Reflection (Waves)
  • Reflectivity
  • Square Roots
  • Standards
  • Vegetation

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Calculus or Mathematical Analysis

Technology Areas

  • 5G