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Revealing of major factors in the directional thermal radiation of ground objects

A new way for improving the precision of directional radiant temperature measuring and data analysis

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Abstract

This paper is devoted to eliminating the noise from the measuring of directional thermal radiation for ground objects. Specifically, we think that the noise is mainly due to the variance of components in the field of view of the sensor with the view angle changing and to the heat balance change on the ground during the period of measurement. The authors present two new observation methods named as “constant area method by thermal camera” and “concurrent method by dual sensors” respectively. The experiments show that the data obtained by these methods abide by some regularly directional distribution, which is totally different from the data from the former methods. The analysis of the major factors in the directionality of thermal radiation is also made in the paper.

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Authors and Affiliations

  1. Institute of Geography, Chinese Academy of Sciences, 100101, Beijing, China

    Renhua Zhang, Xiaomin Sun, Hongbo Su & Xinzhai Tang

  2. Laboratoire des Sciences de I’Image, de I’Informatique et de la Teledetection, 67400, Illkrich, France

    Zhaoliang Li & M. P. Stoll

Authors
  1. Renhua Zhang
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  2. Xiaomin Sun
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  3. Zhaoliang Li
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  4. M. P. Stoll
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  5. Hongbo Su
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  6. Xinzhai Tang
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Correspondence to Renhua Zhang.

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Zhang, R., Sun, X., Li, Z. et al. Revealing of major factors in the directional thermal radiation of ground objects. Sci. China Ser. E-Technol. Sci. 43 (Suppl 1), 34–40 (2000). https://doi.org/10.1007/BF02916576

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  • DOI: https://doi.org/10.1007/BF02916576

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