Polarimetric SAR Antenna Characterization

Abstract

A procedure is described for obtaining the two-way polarimetric properties of a SAR antenna from one-way measurements in a compact antenna test range. The two-way properties are determined by involving reciprocity and computing a polarization distortion matrix (PDM). Next, one-way antenna-only measurements are combined with boresight measurements of the complete system to find an overall PDM. Polarimetric distortions caused by the antenna can be compensated using the inverse of the PDM; however, the Advanced Detection Technology Sensor antenna was found to have adequately low crosspolarization without the need for crosspolarization compensation.

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Document Details

Document Type
Technical Report
Publication Date
Jul 28, 1989
Accession Number
ADA213438

Entities

People

  • Dennis J. Blejer
  • Richard M. Barnes

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Antennas
  • Boresights
  • Compensation
  • Coordinate Systems
  • Cross Polarization
  • Detection
  • Detectors
  • Distortion
  • Electric Fields
  • Frequency
  • Measurement
  • Polarization
  • Radar
  • Scattering
  • Synthetic Aperture Radar
  • Transducers

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Phased Array Antenna Design.
  • Radio communications and signal processing.