A MICROWAVE CORRELATION RADIOMETER.

Abstract

A practical microwave correlation radiometer was built and tested. Feedback was used to ensure stability and make it unnecessary to match receiver channels. The rms temperature deviation was derived and found to be square root of 2 times that of a total power radiometer. Two separate systems to provide an ac multiplier output were built and evaluated. In one, the receiver channels were tuned to a slightly different frequency while in the other, phase reversal in one channel at an ac rate provided the modulation. The latter method proved easier to instrument. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1966
Accession Number
AD0639328

Entities

People

  • William B. Goggins Jr.

Organizations

  • Air Force Cambridge Research Laboratories

Tags

DTIC Thesaurus Topics

  • Feedback
  • Frequency
  • Microwaves
  • Modulation
  • Radiometers
  • Square Roots

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Mathematics or Statistics
  • Radar Systems Engineering.