Space Tether-Radar Data Processing.

Abstract

NASA conducted the Delta-PMG tethered satellite missions. It was conducted to verify the hollow cathode plasma source's ability to couple electric currents from each end of a long wire tether traversing the ambient low earth orbit ionosphere plasma observations were obtained through a suite of sensors which included large ground based VHF radars. The goal of this thesis was to process the radar data received at the radar based in Hawaii to study disturbances in the Earth's ionosphere caused by the tether. After extensive analysis, unique radar returns were identified that were associated with the passage of the tether system through magnetic field lines threading the radar's field of view. These returns were interpreted as a plasma cloud propagating along a magnetic field line and reflecting back along another. This phenomenon produced dual returns with inverted Doppler frequency content. (AN)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1994
Accession Number
ADA289654

Entities

People

  • Wayne A. Brewster

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Data Processing
  • Detection
  • Detectors
  • Doppler Effect
  • Earth Orbits
  • Electric Current
  • Electromagnetic Radiation
  • Electron Density
  • Environment
  • Frequency
  • Ground Based
  • Ionosphere
  • Low Earth Orbits
  • Magnetic Fields
  • Radar
  • Radio Frequency
  • Radio Waves

Fields of Study

  • Environmental science

Readers

  • Electrical Engineering
  • Plasma Physics / Magnetohydrodynamics
  • Radar Systems Engineering.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Orbital Debris
  • Space - Space Objects