• Spectroscopy and Spectral Analysis
  • Vol. 30, Issue 6, 1697 (2010)
XUE Qing-sheng1、2、*, WANG Shu-rong1, LI Fu-tian1, LIN Guang-yu1, and DUAN Ming-zheng3
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
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    DOI: Cite this Article
    XUE Qing-sheng, WANG Shu-rong, LI Fu-tian, LIN Guang-yu, DUAN Ming-zheng. Analysis and Experimental Validation of Sgnal-to-Noise for Limb Imaging Sectrometer[J]. Spectroscopy and Spectral Analysis, 2010, 30(6): 1697 Copy Citation Text show less

    Abstract

    Limb imaging spectrometer is an important new remote sensor for research and application. Signal-to-noise ratio (SNR) is one of the key parameters to quantitatively evaluate the image quality and radiometric performance of an imaging spectrometer. The estimation and testing of SNR are very important for developing an imaging spectrometer. From the perspectives of radiative transmission and energy conversion, the SNR model is proposed, and the SNR equation of dispersive-type limb imaging spectrometer is derived, and the SNR values under several observing conditions for an limb imaging spectrometer prototype developed are theoretically evaluated based on atmospheric radiative transfer code MODTRAN 4.0. The results show that the SNR of the prototype under typical viewing geometry is not less than 8. As experimental validation, SNR testing was performed using an internally illuminated integrating sphere, and the experimental results have proved the correctness of this theoretical model.
    XUE Qing-sheng, WANG Shu-rong, LI Fu-tian, LIN Guang-yu, DUAN Ming-zheng. Analysis and Experimental Validation of Sgnal-to-Noise for Limb Imaging Sectrometer[J]. Spectroscopy and Spectral Analysis, 2010, 30(6): 1697
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