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          Institute: MPI für Gravitationsphysik     Collection: Laser Interferometry & Gravitational Wave Astronomy     Display Documents

ID: 372223.0, MPI für Gravitationsphysik / Laser Interferometry & Gravitational Wave Astronomy
Pulsar search using data compression with the Garching gravitational wave detector
Authors:Niebauer, T. M.; Rüdiger, Albrecht; Schilling, Roland; Schnupp, L.; Winkler, Walter; Danzmann, Karsten
Date of Publication (YYYY-MM-DD):1993-04
Title of Journal:Physical Review D
Issue / Number:8
Start Page:3106
End Page:3123
Review Status:not specified
Audience:Not Specified
Abstract / Description:We describe briefly the standard problems associated with the detection of a periodic signal of astrophysical origin. We present a method for data compression when the bandwidth of the expected signal is much smaller than the detector bandwidth. The reduced data set can be corrected for the Doppler shift due to Earth's orbital and rotational motion even when the expected signal is close to the Nyquist frequency of the original data rate. Standard matched filtering techniques and Fourier transform processing can also be implemented on the compressed data stream. We applied this procedure to 100 hours of data taken with the Garching gravitational wave prototype detector. The results of this test reveal that the amplitude statistics of our prototype in the frequency domain follow closely the expected Rayleigh distribution over all 100 h. This analysis puts a constraint of 9 × 10-21 on possible gravitational wave strains produced by periodic sources in SN 1987A.
External Publication Status:published
Document Type:Article
Communicated by:Karsten Danzmann
Affiliations:MPI für Gravitationsphysik/Laser Interferometry & Gravitational Wave Astronomy
MPI für Gravitationsphysik/Teilinstitut Hannover
External Affiliations:Max-Planck-Institut für Quantenoptik, D-8046 Garching bei München, Germany
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