What is very long baseline interferometry (VLBI)?

What does VLBI stand for?

  • Geodetic Very Long Baseline Interferometry (VLBI) observations provided the first direct confirmation of tectonic plate motion at the end of the 1980s.

How accurate are VLBI observations?

  • Now VLBI observations measure the motions of stations with accuracy better than 1mm/year together with other space geodetic techniques such as Global Positioning System (GPS) and Satellite Laser Ranging (SLR) analysis.

What is the VLBI technique for receiving radio signals?

  • In addition, by using telescopes at various locations, radio astronomers effectively increase collecting area of the receiving antenna thus increasing the sensitivity. Combined, these two properties make the VLBI technique the sharpest and the most sensitive tool for receiving radio signals from space, whether of natural or manmade origin.

image-What is very long baseline interferometry (VLBI)?
image-What is very long baseline interferometry (VLBI)?
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