DESTRIPING OF POLARIZED DATA IN A CMB MISSION WITH A CIRCULAR SCANNING STRATEGY
B. REVENU (1), A.KIM (1),R. ANSARI (2), F. COUCHOT (2), J. DELABROUILLE (1) and J. KAPLAN (1)
(1) Physique Corpusculaire et Cosmologie, Coll{\`e}ge de France
11 Place Marcelin Berthelot, F-75231 Paris CEDEX 05, France
(2) Laboratoire de l'Acc{\'e}l{\'e}rateur Lin{\'e}aire, IN2P3 CNRS
Universit{\'e} Paris Sud, F-91405 Orsay, France


Abstract:
A major problem in Cosmic Microwave Background (CMB) anisotropy mapping, especially in a total-power mode, is the presence of low-frequency noise in the data streams. If unproperly processed, such low-frequency noise leads to striping in the maps. To deal with this problem, solutions have already been found for mapping the CMB temperature fluctuations but none have yet been proposed for the measurement of CMB polarization. Complications arise due to the scan-dependent orientation of the measured polarization. We present a method for building temperature and polarization maps with minimal striping effects in the case of a circular scanning strategy mission such as the {\sc Planck} mission.