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Data Analysis  of Gravitational Waves Sanjay Kumar Sahay

Data Analysis of Gravitational Waves

Sanjay Kumar Sahay

Published 2008
ISBN :
ebook
120 pages
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 About the Book 

The detection of GW in the noisy output of the detectors has its own problem, notthe least of which is the sheer volume of data analysis. The data analysis of thesignals is computationally demanding even for the standard computer expected tobeMoreThe detection of GW in the noisy output of the detectors has its own problem, notthe least of which is the sheer volume of data analysis. The data analysis of thesignals is computationally demanding even for the standard computer expected tobe available in the near future. Hence, the book discusses the data analysis prob-lem of the signal by developing the analytical Fourier Transform with taking intoaccount the Earth’s rotational motion around its axis, and its revolution around theSun for efficient data analysis, efficient not only in a picking weak signal from thenoisy data but also in terms of the computing-cost. Taking the advantage of theanalytical Fourier Transform over the Fast Fourier Transform in terms of resolutionand computational cost, we applied the technique of “Matched Filtering” and es-timated the number of templates required for matched filtering in an all sky searchof the signal, and also an analysis has been done for the possible symmetries in thesky location as the parameters of the signal manifold and templates correspondingto the different source locations. The trade-off between computational cost andsensitivities arises due the Earth azimuth in the bank of search templates for anall-sky search of the singal has been also discussed.