Does LIGO detect back ground noise

[wolram]

I suspect it has a very noisy pick up from back ground gravitational radiation, what source is the most likely
candidate for this back ground radiation?

 

[Garth]

Reference?

 

[wolram]

Garth, i can not find a reference, this post is just an inquiry into how the LIGO detectors work. ie if they have to tune out back ground noise or if they record every thing, and if they record every thing what is the source of the noise

 

[Drakkith]

The gravitational radiation itself inherently has noise of course, but there is no single source that "drowns out" other signals. The combined signal from many different sources makes up a very low background and any single source has to rise above this (along with the many, many sources of terrestrial noise) to be detected.