Radar Observations of the Moon at 8.6-mm Wavelength

Abstract

The experimental, pseudo-CW radar used to detect the first lunar echoes at millimeter wavelengths is described. This system, with a peak-power output of 12 watts, has been used to obtain preliminary mapping of the moon at a wavelength of 8.6 mm with resolution in angle only. Approximately 85% of the reflected power can be attributed to diffuse scattering. This component appears to follow the Lommel-Seeliger Law although there are insufficient data to define the distribution accurately. For the positions observed, there was no significant difference in reflection between the maria and the continents, within limits of approximately + or - 2db. The total radar cross section of the moon at 8.6-mm wavelength was determined to be 7 + or - 2% of the geometric cross section.

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Document Details

Document Type
Technical Report
Publication Date
Oct 08, 1963
Accession Number
AD0426207

Entities

People

  • E. A. Crocker
  • M. D. Sohigian
  • V. L. Lynn

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Atmospheric Attenuation
  • Bandwidth
  • Continuous-Wave Radar
  • Detection
  • Doppler Effect
  • Frequency
  • Grids
  • Measurement
  • Observation
  • Oscillators
  • Peak Power
  • Power
  • Radar
  • Radar Cross Sections
  • Reflection
  • Reflectors
  • Scattering

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Radar Systems Engineering.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris