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《Science of Surveying and Mapping》 2013-03
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Data transformation model analysis on spectral retrieved deduction of soil properties index

QIU Hua-xu ① HUANG Zhang-yu ① LI Xi-can ②(①College of Earth Science and Engineering,Hohai University,Nanjing 210098,China;②College of Information Science and Engineering,Shandong Agricultural University,Shandong Taian 271000,China)  
Using soil Fe and soil organic matter as properties index in this paper,ordinary types of transformation were applied to the original reflection rate,and the correlation coefficients between the transformed value and soil properties index were calculated,the maximum value increased greatly.Other types of new transformation such as the order 1 derivative of the logarithm times order 1 derivative of the square root were applied,or selecting wavebands which could get bigger correlation coefficients after transformation to take cross-combination,the maximum correlation coefficient between the transformed value and soil properties index got another increase.The results showed that the transformation of the order 1 derivative of the logarithm times order 1 derivative of the square root or cross-combination could make the correlations increase effectively.
【CateGory Index】: S153
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