Clutter-Doppler Spectral Analysis for a Space-Based Radar

Abstract

The impact of worst-case, ionospheric scintillation on the clutter- Doppler spectrum is analyzed for a space-based radar that operates between 100 and 1300 MHz. Analytical expressions for the spectrum are derived for a narrow, Gaussian antenna beam. For normal system parameters, the analytical expressions, combined with data from the Defense Nuclear Agency's Wideband satellite experiment, are used to compare the relative significance of the components of the clutter-Doppler spread for a range cell and to obtain the clutter-Doppler spread over the antenna's mainlobe. In addition, lower bounds are determined on the achievable reduction in the clutter-Doppler spread of a system.

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Document Details

Document Type
Technical Report
Publication Date
May 10, 1991
Accession Number
ADA236644

Entities

People

  • Eric L. Mokole

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Computer Programs
  • Data Sets
  • Doppler Effect
  • Frequency
  • Geometry
  • Integrals
  • Ionospheric Scintillation
  • L Band
  • Latitude
  • Moving Target Indicator Radar
  • Power Gain
  • Radar
  • Scintillation
  • Space Based
  • Spectra
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Phased Array Antenna Design.
  • Radio communications and signal processing.

Technology Areas

  • Space
  • Space - Space Objects