Very Long Baseline Interferometry

E116182

geodetic measurement technique interferometric technique radio astronomy technique

Very Long Baseline Interferometry is a radio astronomy technique that combines signals from widely separated antennas to achieve extremely high angular resolution and precisely measure geodetic and astronomical parameters.

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All labels observed (4)

Label	Occurrences
Very Long Baseline Interferometry canonical	5
VLBI	4
Very Long Baseline Interferometry network	1
Very Long Baseline Interferometry networks	1

Statements (50)

Predicate	Object
instanceOf	geodetic measurement technique ⓘ interferometric technique ⓘ radio astronomy technique ⓘ
abbreviation	Very Long Baseline Interferometry self-linksurface differs ⓘ surface form: VLBI
aimsAt	achieving very high angular resolution ⓘ precise astronomical measurements ⓘ precise geodetic measurements ⓘ
appliedIn	astrometry ⓘ geodesy ⓘ radio astronomy imaging ⓘ spacecraft tracking ⓘ tests of general relativity ⓘ
basedOn	aperture synthesis ⓘ interference of radio waves ⓘ
canUse	ground-based antennas ⓘ space-based antennas ⓘ
characterizedBy	independent local oscillators at each antenna ⓘ post-observation data correlation ⓘ very long baselines ⓘ
contributesTo	Earth rotation monitoring ⓘ definition of time scales ⓘ nutation determination ⓘ plate tectonics studies ⓘ precession models ⓘ
developedFrom	radio interferometry ⓘ
enables	International Celestial Reference Frame realization ⓘ International Terrestrial Reference Frame realization ⓘ high-precision reference frames ⓘ microarcsecond angular resolution in some bands ⓘ milliarcsecond angular resolution ⓘ
measures	Earth orientation parameters ⓘ baseline lengths between antennas ⓘ parallax of astronomical objects ⓘ proper motions of astronomical objects ⓘ quasar positions ⓘ source positions ⓘ tectonic plate motion ⓘ time delays between received signals ⓘ
requires	highly stable frequency standards ⓘ hydrogen maser clocks ⓘ offline correlation processing ⓘ precise time synchronization ⓘ recording of wide-band radio signals ⓘ
standardizedBy	International VLBI Service for Geodesy and Astrometry ⓘ
uses	correlation of radio signals ⓘ extragalactic radio sources ⓘ interferometry ⓘ quasars as reference sources ⓘ widely separated radio telescopes ⓘ
variant	space VLBI ⓘ

Referenced by (11)

Full triples — surface form annotated when it differs from this entity's canonical label.

Earth rotation → isMeasuredBy → Very Long Baseline Interferometry ⓘ

National Radio Astronomy Observatory → participatesIn → Very Long Baseline Interferometry ⓘ

this entity surface form: Very Long Baseline Interferometry networks

United States Naval Observatory, Washington, D.C. → uses → Very Long Baseline Interferometry ⓘ

subject surface form: United States Naval Observatory

Very Long Baseline Interferometry → abbreviation → Very Long Baseline Interferometry self-linksurface differs ⓘ

this entity surface form: VLBI

Very Long Baseline Array → partOf → Very Long Baseline Interferometry ⓘ

this entity surface form: Very Long Baseline Interferometry network

International Terrestrial Reference System → dataSources → Very Long Baseline Interferometry ⓘ

this entity surface form: VLBI

International Celestial Reference System → abbreviation → Very Long Baseline Interferometry ⓘ

this entity surface form: VLBI

Earth Orientation Parameters → measuredBy → Very Long Baseline Interferometry ⓘ

International VLBI Service for Geodesy and Astrometry → usesTechnique → Very Long Baseline Interferometry ⓘ

IERS ICRS Centre → usesTechnique → Very Long Baseline Interferometry ⓘ

this entity surface form: VLBI