Title :
Component Separation With Flexible Models—Application to Multichannel Astrophysical Observations
Author :
Cardoso, Jean-Fran?§ois ; Le Jeune, Maude ; Delabrouille, Jacques ; Betoule, Marc ; Patanchon, Guillaume
Author_Institution :
Lab. de traitement et Commun. de I´´Inf., CNRS, Paris
Abstract :
This paper offers a new point of view on component separation, based on a model of additive components much more flexible than what is used in more traditional approaches. This flexibility is needed to accommodate the complex full-sky observations expected from the Planck space mission, for which it was developed, but it may also be useful in any context where accurate component separation is needed.
Keywords :
array signal processing; cosmic background radiation; independent component analysis; spectral analysis; Planck space mission; additive components; array signal processing; component separation; cosmic microwave background; independent component analysis; multichannel astrophysical observations; spectral analysis; Array signal processing; Contamination; Data processing; Extraterrestrial measurements; Frequency; Independent component analysis; Noise level; Pollution measurement; Space missions; Spectral analysis; Astronomy; array signal processing; component separation; independent component analysis; spectral analysis;
Journal_Title :
Selected Topics in Signal Processing, IEEE Journal of
DOI :
10.1109/JSTSP.2008.2005346
