Destriping of polarized data in a CMB mission with a circular scanning strategy
Destriping of polarized data in a CMB mission with a circular scanning strategy
复制标题
使用圆形扫描策略在 CMB 任务中去除偏振数据
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
J. Kaplan
中科院分区：
文献类型：
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作者：
B. Revenu;A. Kim;R. Ansari;F. Couchot;J. Delabrouille;J. Kaplan
在宇宙微波背景（CMB）各向异性映射中，特别是在总功率模式下，一个主要问题是数据流中存在低频噪声。如果处理不当，这种低频噪声会导致地图中的条纹。为了解决这个问题，已经找到了用于映射CMB温度波动的解决方案，但是还没有提出用于测量CMB偏振的解决方案。由于所测量的偏振的扫描相关取向，出现了并发症。在本文中，我们研究了一种方法，用于建立温度和偏振地图的情况下，如普朗克使命的圆形扫描策略使命的条纹效应最小。
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 no solution has yet been proposed for the measurement of CMB polarization. Complications arise due to the scan-dependent orientation of the measured polarization. In this paper, we investigate a method for building temperature and polarization maps with minimal striping effects in the case of a circular scanning strategy mission such as the Planck mission.