GW150914 gravitational wave detection incident analysis

 GW150914 gravitational wave detection incident analysis

I’m analyzing the data from LIGO project, about first detection of gravitational waves. In one of the many threads here, someone said when I want to do an ASD of the strain I should use PeriodogramArray (where 1/dt=4096.):

PeriodogramArray[data, Round[1/dt], 1, HannWindow]

I used it, but the resulting density is much less than in the original tutorial. The order of magnitude of the density I’ve got is about ten to -43… What could be the reason of that? Someone else did the signal processing of those data?

Tom

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