SPECTRAL LINE INTERFEROMETRY AND INTERFEROMETER NOISE ANALYSIS

Abstract

The theory of spectral line interferometry is developed with special reference to interferometer systems built to study the emission from interstellar OH molecules. Expressions for the root-mean-square noise of visibility amplitude and phase are derived in terms of the geometric means of the system and antenna temperatures. Methods are discussed for obtaining the visibility function from measurements made at widely separated sites by means of precise frequency and time standards.

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Document Details

Document Type
Technical Report
Publication Date
Jan 16, 1968
Accession Number
AD0666038

Entities

People

  • Alan E. Rogers

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bandwidth
  • Correlation Techniques
  • Correlators
  • Detectors
  • Electric Fields
  • Electromagnetic Radiation
  • Frequency
  • Frequency Standards
  • Local Oscillators
  • Measurement
  • Oscillators
  • Radio Frequency
  • Research Facilities
  • Spectral Lines
  • Standards
  • Time Standards
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Astronomy/Astrophysics
  • Spectroscopy.

Technology Areas

  • Space