An iterative destriping technique for diffuse background polarization data

被引:17
作者
Sbarra, C
Carretti, E
Cortiglioni, S
Zannoni, M
Fabbri, R
Macculi, C
Tucci, M
机构
[1] IASF CNR Bologna, I-40129 Bologna, Italy
[2] IASF CNR Milano, I-20133 Milan, Italy
[3] Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, Italy
[4] Inst Fis Cantabria, Santander 39005, Spain
关键词
cosmic microwave background; polarization; cosmology : observations; methods : data analysis; methods : numerical;
D O I
10.1051/0004-6361:20030200
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We describe a simple but effective iterative procedure specifically designed to destripe Q and U Stokes parameter data as those collected by the SPOrt experiment onboard the International Space Station (ISS). The method is general enough to be useful for other experiments, both in polarization and total intensity. The only requirement for the algorithm to work properly is that the receiver knee frequency must be lower than the signal modulation frequency, corresponding in our case to the ISS orbit period. Detailed performances of the technique are presented in the context of the SPOrt experiment, both in terms of added rms noise and residual correlated noise.
引用
收藏
页码:1215 / 1222
页数:8
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