The search for gravity waves has been going on for a long time. When I was assigned to Air Force Office of Scientific Research, back in the 1960s, we were supporting the work of a gravity wave researcher at University of Maryland. One day I visited his lab. I saw that he had an auto license plate attached to the outside of his instrument. He remarked that it was the only licensed gravity wave detector in Maryland.
To use it as a Gravity Wave Detector, ironically, you would have to find a star with no planets, or some that were too small to be a problem.
Fix the star’s light onto the detector for a long period of time, monitored 24 / 7 / 365.
Examine the red / blue shift to get a ‘constant’ value to be used as the ‘reference’.
If it changes, to the red or blue direction, with no planets interfering, then a gravity wave must have passed between you, the observer, and the star being studied...........................sound okay?................