AN EXPERIMENTAL MICROWAVE IMAGING SYSTEM USING PREFORMED BEAMS.

Abstract

An experimental investigation of microwave imaging using preformed beams is made at a frequency of 24 gigahertz (wavelength 1.25 cm). The apparatus consists of a 1.5 meter diameter parabolic reflector with a mosaic of deectors at the focal plane. The detector outputs are amplified and stored to provide a set of d.c. voltages, proportional to the energy received at points in the image plane, to be applied to an intensity modulated display. Using microwave antenna and optical principles, the theory of image formation and resolution is discussed. using measured parameters. Advantages of the system with respect to conventional scanning radar appear for fast moving objects at close range. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1967
Accession Number
AD0828296

Entities

People

  • Robert Allan Litten

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Antennas
  • Detectors
  • Diameters
  • Focal Planes
  • Frequency
  • Intensity
  • Microwave Antennas
  • Microwaves
  • Reflectors
  • Scanning
  • Warning Systems

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Phased Array Antenna Design.
  • Pulsed Power and Plasma Physics.