Robust estimation of the parameters of a disturbed non-stationary Gaussian process

Details Robust estimation of the parameters of a disturbed non-stationary Gaussian process Robust estimation of the parameters of a disturbed non-stationary Gaussian process

2009-05-15

arxiv.org/abs/0905.2572v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages; Presented to the GWDAW13 workshop, Jan 2009

Scientific paper

A typical problem in the detection of the gravitational waves in the data of gravitational antennas is the non-stationarity of the Gaussian noise (and so the varying sensitivity) and the presence of big impulsive disturbances. In such conditions the estimation of the standard deviation of the Gaussian process done with a classical estimator applied after a "rough" cleaning of the big pulses often gives poor results. We propose a method based on a matched filter applied to an AR histogram of the absolute value of the data

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