Measurement System and Error Analysis of Mid-Infrared Atmospheric Background Radiation

Shuangyuan, 陈双远 Chen; Fangyu, 许方宇 Xu; Feixiang, 王飞翔 Wang; Xiaowei, 袁晓伟 Yuan; Zhiyuan, 罗志远 Luo; Ji, 陈骥 Chen; Yongfang, 罗永芳 Luo

doi:10.3788/aos201939.0301001

光学学报

2019

DOI: 10.3788/aos201939.0301001

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Measurement System and Error Analysis of Mid-Infrared Atmospheric Background Radiation

陈双远 Chen Shuangyuan¹,

许方宇 Xu Fangyu²,

王飞翔 Wang Feixiang³

et al.

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“…• . Repeating the measurement ten times, the average radiation signal can be obtained Chen et al (2019). andZhao et al (2018) describe the instrument calibration process.…”

mentioning

confidence: 99%

Mid-infrared atmospheric transmittance at 5100m-altitude Ali Observatory

Wang

Guo

et al. 2020

Res. Astron. Astrophys.

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Ali in Tibet, 5100 m above sea level, is one of the most suitable locations in the world for infrared spectral observations. The atmospheric transmittances at Ali Observatory and Mauna Kea Observatory were calculated by MODTRAN using radiosonde data. The results were 0.848 and 0.789 respectively which indicated better conditions at Ali Observatory. A self-made instrument with a 320×256-pixel HgCdTe infrared focal plane array and a 7.5-cm diameter telescope was utilized for the actual measurements. Without the help of standard stars, the on-site and real-time atmospheric transmittance can be obtained as 0.831 by fitting the relation between the measured atmospheric radiation intensity and the zenith angle based on radiation transfer equations. This paper firstly reports the atmospheric transmittance in the M’ band (4.605–4.755 μm) at the 5100 m-altitude Ali observatory by actual measurement. It shows that the high-altitude Ali observatory with sufficiently low water vapor content is suitable for observation in the mid-infrared bands.

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“…• . Repeating the measurement ten times, the average radiation signal can be obtained Chen et al (2019). andZhao et al (2018) describe the instrument calibration process.…”

mentioning

confidence: 99%

Mid-infrared atmospheric transmittance at 5100m-altitude Ali Observatory

Wang

Guo

et al. 2020

Res. Astron. Astrophys.

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Measurement System and Error Analysis of Mid-Infrared Atmospheric Background Radiation

Cited by 1 publication

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Mid-infrared atmospheric transmittance at 5100m-altitude Ali Observatory

Mid-infrared atmospheric transmittance at 5100m-altitude Ali Observatory

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