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  Calibrating spectral estimation for the LISA Technology Package with multichannel synthetic noise generation

Ferraioli, L., Heinzel, G., Hewitson, M., Hueller, M., Monsky, A., Nofrarias, M., et al. (2010). Calibrating spectral estimation for the LISA Technology Package with multichannel synthetic noise generation. Physical Review D, 82(4): 042001. doi:10.1103/PhysRevD.82.042001.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-EB58-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-8055-9
Genre: Journal Article

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 Creators:
Ferraioli, Luigi, Author
Heinzel, Gerhard1, Author              
Hewitson, Martin2, Author              
Hueller, Mauro, Author
Monsky, Anneke1, Author              
Nofrarias, Miquel1, Author              
Vitale, Stefano, Author
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Physics, Data Analysis, Statistics and Probability, physics.data-an
 Abstract: The scientific objectives of the Lisa Technology Package (LTP) experiment, on board of the LISA Pathfinder mission, demand for an accurate calibration and validation of the data analysis tools in advance of the mission launch. The levels of confidence required on the mission outcomes can be reached only with an intense activity on synthetically generated data. A flexible procedure allowing the generation of cross-correlated stationary noise time series was set-up. Multi-channel time series with the desired cross correlation behavior can be generated once a model for a multichannel cross-spectral matrix is provided. The core of the procedure is the synthesis of a noise coloring multichannel filter through a frequency-by-frequency eigendecomposition of the model cross-spectral matrix and a Z-domain fit. The common problem of initial transients in noise time series is solved with a proper initialization of the filter recursive equations. The noise generator performances were tested in a two dimensional case study of the LTP dynamics along the two principal channels of the sensing interferometer.

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 Dates: 2010-06-012010-07-152010
 Publication Status: Published in print
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 Identifiers: arXiv: 1006.0138
DOI: 10.1103/PhysRevD.82.042001
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 82 (4) Sequence Number: 042001 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258