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Performance of Reduced Polarimetric Optical Switching Demodulation Technique in Different Spatio-Temporal Polarization Modulation Schemes

文献类型：期刊论文

作者Xu Z(徐稚); Zhong Y(钟悦)
刊名UNIVERSE
出版日期2025-04-07
卷号11期号:4
关键词solar polarimetry techniques polarimetric
DOI10.3390/universe11040124
产权排序第1完成单位
文献子类Article
英文摘要The beam exchange is a classical supplementary technique for spatio-temporal modulation in a dual-beam setup. In order to save time, the reduced polarimetric-optical-switching (RPOS) technique was propsed as an alternative technique. In this work, we revisit the assumptions of several formulas specifically constructed for this technique and evaluate their validity in different modulation schemes (e.g., dependent modulation), especially when reference measurements are acquired using specific Stokes signals. Subsequently, we compare the RPOS technique based on the most appropriate formula with the demodulation method based on the demodulation matrix by using synthesized observation data. The artificial observation takes into account the influence several factors have on the modulated intensities, including dark current, gain variation, atmospheric seeing fluctuations, and photon noise. Our numerical tests demonstrate that the RPOS technique has an advantage in mitigating the effects of atmospheric seeing fluctuations and gain variations between two beams. However, the selection of a specific Stokes signal for reference measurements has a notable impact on performance in minimizing the effect of photon noise.
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地MDPI AG, Grosspeteranlage 5, CH-4052 BASEL, SWITZERLAND
WOS关键词SOLAR ; CALIBRATION
资助项目the National Science Foundation of China (NSFC)[12473054]; the National Science Foundation of China (NSFC)[12127901]; the National Science Foundation of China (NSFC)[12073075]; National Science Foundation of China (NSFC)[XDB0560000]; Strategic Priority Research Program of the Chinese Academy of Sciences[202205AG070009]; Yunnan Key Laboratory of Solar Physics and Space Science[202105AC160085]; Yunnan Fundamental Research Projects
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:001475396400001
出版者MDPI
资助机构the National Science Foundation of China (NSFC)[12473054, 12127901, 12073075] ; National Science Foundation of China (NSFC)[XDB0560000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[202205AG070009] ; Yunnan Key Laboratory of Solar Physics and Space Science[202105AC160085] ; Yunnan Fundamental Research Projects
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28291]  
专题无名山观测站
作者单位Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
推荐引用方式
GB/T 7714		 Xu Z,Zhong Y. Performance of Reduced Polarimetric Optical Switching Demodulation Technique in Different Spatio-Temporal Polarization Modulation Schemes[J]. UNIVERSE,2025,11(4).
APA 徐稚,&钟悦.(2025).Performance of Reduced Polarimetric Optical Switching Demodulation Technique in Different Spatio-Temporal Polarization Modulation Schemes.UNIVERSE,11(4).
MLA 徐稚,et al."Performance of Reduced Polarimetric Optical Switching Demodulation Technique in Different Spatio-Temporal Polarization Modulation Schemes".UNIVERSE 11.4(2025).

入库方式： OAI收割

来源：云南天文台

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