Method for identifying high-purity quartz sandstone through thermal infrared hyperspectral remote sensing

Abstract

The invention belongs to the technical field of combination of remote sensing information technology and material science, and particularly relates to a method for identifying high-purity quartz sandstone through thermal infrared hyperspectral remote sensing, which comprises the following steps of: preprocessing thermal infrared hyperspectral remote sensing data; performing atmospheric correctionon the thermal infrared hyperspectral remote sensing data; separating the temperature / emissivity of the thermal infrared hyperspectral data; obtaining a quartz mineral content quantitative calculationempirical formula; acquiring a quartz mineral content diagram; and acquiring information of the high-purity quartz sandstone. Aiming at the characteristics of high quartz content of the high-purity quartz sandstone, the quartz content is quantitatively calculated by utilizing a remote sensing technology, distribution information of the high-purity quartz sandstone can be rapidly and accurately extracted, and the position and the distribution form of the high-purity quartz sandstone are determined.

Description

technical field [0001] The invention belongs to the technical field of combining remote sensing information technology and material science, and specifically relates to a method for identifying high-purity quartz sandstone by thermal infrared hyperspectral remote sensing. Background technique [0002] The scarcity of high-purity quartz sand and the large demand for high-end industries such as optoelectronic devices, optical fibers and semiconductor devices have made it rare and expensive. At present, the high-purity quartz sand used in China is mainly imported high-purity quartz sand, while the domestically produced high-purity quartz sand is mainly limited by the disadvantages of ore sources, and it is difficult to meet domestic demand. [0003] The purity of domestic high-purity quartz placer sources is relatively low, and the range of existing technologies to improve its purity is not large, and mineral sources that can meet the requirements are scarce. Therefore, in ord...

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Problems solved by technology

[0006] The present invention aims at the deficiencies of the above-mentioned prior art, and provides a method for identifying high-purity quartz sandstone by thermal infrared hyperspectral remote sensing, which is used to solve the technical problem in the prior art that it is impossible to find high-quality high-purity quartz sandstone sources in a short time

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