VERY LONG BASELINE INTERFEROMETRY AS A MEANS OF WORLDWIDE TIME SYNCHRONIZATION

Abstract

Extraterrestrial radio waves from sources of small angular size can be used to synchronize clocks at two receiving sites to a high degree of precision. Radio star signals, together with time identification, are recorded on magnetic tape. Tapes are subsequently processed on a digital computer to obtain the synchronization error between the two clocks at the time of observation. The ultimate limit to the precision of the method is the knowledge of the relative signal delay in the atmosphere and ionosphere.

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Document Details

Document Type
Technical Report
Publication Date
Feb 17, 1970
Accession Number
AD0704134

Entities

People

  • Alan E. E. Rogers
  • James M. Moran Jr.

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Computers
  • Cross Correlation
  • Data Processing
  • Frequency
  • Frequency Standards
  • Identification
  • Interferometers
  • Local Oscillators
  • Magnetic Tape
  • Observation
  • Recording Systems
  • Standards
  • Tapes
  • Time Standards
  • Video
  • Video Signals

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Computer Science.
  • Positioning, Navigation, and Timing (PNT) Technology.