利用恒星辐射测量整层大气透过率的多目标星定标
Multi-objective star calibration study of total atmospheric transmittance measurement with stellar irradiance
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摘要: 介绍了整层大气透过率测量仪及其测量原理和Langley-Plot定标方法,提出了基于恒星整层大气透过率仪测量大气透过率的多目标星定标方法，并分别进行了K，A光谱类型恒星定标试验，得到了基于K，A两种光谱类型恒星辐射的定标值。对多目标星定标方法与单颗恒星的Langley-Plot定标方法进行了对比实验,验证了多目标星定标方法的合理性与准确性。当实时测量同类型的恒星辐射整层大气透过率时,就可以根据对应的定标参数进行测量研究。Abstract: The Langley-Plot calibration principles and measurement apparatus of total atmospheric transmittance were introduced. The multi-objective star calibration of total atmospheric transmittance measurements with stellar irradiance is presented, and calibration experimentations of the K,A spectral type stars were carried out .The calibration values based on the K, A types of stellar spectra were obtained. Comparison experiments between multi-objective star method and Langley-Plot method were carried out, and the reasonableness and correctness of multi-objective star calibration method have been verified. When take real-time measurement with the same type stellar spectra, the corresponding calibration parameters can be used to carry out the measurements of the atmospheric transmittance.
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Key words:
- calibration /
- stellar spectra /
- atmospheric transmittance /
- spectral type
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