Browsing by Subject "astrophysics"
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Item Signal Processing Compact Binary Coalescence Gravitational Wave Data from the Advanced LIGO Detectors(2017-12) Bogat, Sophia E.; Matzner, RichardAbstract or description: This thesis explores the complex signal processing tools and techniques used to perform gravitational wave astronomy. The first ever direct observation of spatial strain caused by a gravitational wave was achieved by the Laser Interferometer Gravitational-Wave Observatory (LIGO) on September 14th, 2015, nearly 100 years after Albert Einstein predicted their existence. Because the amplitude of the strain is so small (on the order of 10-21), it must be measured by a 4 kilometer long interferometer equipped with extremely advanced thermal and seismic vibration isolation systems. Furthermore, the data must undergo significant processing in the form of whitening, matched filtering, and bandpass filtering. We present a detailed study of the steps undergone to identify and validate potential gravitational wavesignals using the LIGO-designed PyCBC software framework for the observation of compact binary coalescence.