Characteristics of HF Radar-Overdense Meteor Echoes

Abstract

The characteristics of HF radar reflections from overdense meteor ionization trails having line densities greater than 10 to the 14th power electrons/m, are discussed. Theoretical estimates are made of the radar cross- sectional area, time duration and the doppler frequency shift of meteor echoes. Utilizing experimental meteor data recorded at 32 MHz by Greenhow and Watkins (1964), extrapolations are made of the statistical variations of the cross- sectional area, the echo duration and the meteor echo rate for frequencies in the 6-MHz to 40-MHz band.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1975
Accession Number
ADB016383

Entities

People

  • George H. Millman

Organizations

  • General Electric

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Antennas
  • Backscattering
  • Distribution Functions
  • Electromagnetic Wave Propagation
  • Equations
  • Frequency
  • Frequency Shift
  • Gaussian Distributions
  • Geometry
  • Ionization Trails
  • Ionosphere
  • Line Of Sight
  • Probability
  • Probability Density Functions
  • Radar Cross Sections
  • Radar Equipment
  • Wind Velocity

Fields of Study

  • Environmental science

Readers

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

Technology Areas

  • Microelectronics