Power filtration of CMB observational data

D.I. Novikov; P. Naselsky; H.E. Jørgensen; P.R. Christensen; I.D. Novikov; Hans Ulrik Nørgaard-Nielsen

Power filtration of CMB observational data

D.I. Novikov, P. Naselsky, H.E. Jørgensen, P.R. Christensen, I.D. Novikov, Hans Ulrik Nørgaard-Nielsen

National Space Institute

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We propose a power filter Cp for linear reconstruction of the CMB signal from one-dimensional scans of observational maps. This Gp filter preserves the power spectrum of the CMB signal in contrast to the Wiener filter which diminishes the power spectrum of the reconstructed CMB signal. We demonstrate how peak statistics and a cluster analysis can be used to estimate the probability of the presence of a CMB signal in observational records. The efficiency of the G, filter is demonstrated on a toy model of an observational record consisting of a CMB signal and noise in the form of foreground point sources.

Original language	English
Journal	International Journal of Modern Physics D
Volume	10
Issue number	2
Pages (from-to)	245-259
ISSN	0218-2718
Publication status	Published - 2001

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title = "Power filtration of CMB observational data",

abstract = "We propose a power filter Cp for linear reconstruction of the CMB signal from one-dimensional scans of observational maps. This Gp filter preserves the power spectrum of the CMB signal in contrast to the Wiener filter which diminishes the power spectrum of the reconstructed CMB signal. We demonstrate how peak statistics and a cluster analysis can be used to estimate the probability of the presence of a CMB signal in observational records. The efficiency of the G, filter is demonstrated on a toy model of an observational record consisting of a CMB signal and noise in the form of foreground point sources.",

author = "D.I. Novikov and P. Naselsky and H.E. J{\o}rgensen and P.R. Christensen and I.D. Novikov and N{\o}rgaard-Nielsen, {Hans Ulrik}",

year = "2001",

language = "English",

volume = "10",

pages = "245--259",

journal = "International Journal of Modern Physics D",

issn = "0218-2718",

publisher = "World Scientific",

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TY - JOUR

T1 - Power filtration of CMB observational data

AU - Novikov, D.I.

AU - Naselsky, P.

AU - Jørgensen, H.E.

AU - Christensen, P.R.

AU - Novikov, I.D.

AU - Nørgaard-Nielsen, Hans Ulrik

PY - 2001

Y1 - 2001

N2 - We propose a power filter Cp for linear reconstruction of the CMB signal from one-dimensional scans of observational maps. This Gp filter preserves the power spectrum of the CMB signal in contrast to the Wiener filter which diminishes the power spectrum of the reconstructed CMB signal. We demonstrate how peak statistics and a cluster analysis can be used to estimate the probability of the presence of a CMB signal in observational records. The efficiency of the G, filter is demonstrated on a toy model of an observational record consisting of a CMB signal and noise in the form of foreground point sources.

AB - We propose a power filter Cp for linear reconstruction of the CMB signal from one-dimensional scans of observational maps. This Gp filter preserves the power spectrum of the CMB signal in contrast to the Wiener filter which diminishes the power spectrum of the reconstructed CMB signal. We demonstrate how peak statistics and a cluster analysis can be used to estimate the probability of the presence of a CMB signal in observational records. The efficiency of the G, filter is demonstrated on a toy model of an observational record consisting of a CMB signal and noise in the form of foreground point sources.

M3 - Journal article

VL - 10

SP - 245

EP - 259

JO - International Journal of Modern Physics D

JF - International Journal of Modern Physics D

SN - 0218-2718

IS - 2

ER -