Based On The Multi-platform, Multi-system Remote Sensing Technology For Information Extraction Application Analysis In Gold, Copper Zone

With the rapid development of modern information,remote sensing technology also increases the field of vision of the human beings on Earth Observation and observation areas, indicating that the impact on the Earth detection technology and research tools has entered a new stage of development. As one of the independent means of geological parameters, remote sensing has been an increasing number of geologists agree.In order to further strengthen the application of remote sensing technology in the exploration and evaluation of mineral resources level, while completing feasible suggestions for the perfect upgrade of the geological exploration of remote sensing systems, the contents of this research are mainly based on multi-source remote sensing data to extract wall rock alteration and geological structure of Xinjiang Hami mound area, focusing on ENVI remote sensing image processing and geological prospecting two systems for the extraction of rock alteration.Finally, it completes to validate the mapping result combining with field investigation and indoor experimental data,as well as to evaluate the remote sensing system of geological prospecting. The main results achieved are as followed:(1) Pre-processing of spaceborne hyperspectral Hyperion image and convertion of the original image DN values to reflectance is helpful to further remote sensing information extraction work;(2)Based on the multispectral ASTER images and ENVI software platform, to extract the structural information in the study area, my method is "selective band combination and the principal component analysis and directional filtering". Linear structures of this region are mainly in the west and north east direction;(3)Combination of airborne hyperspectral HyMap and spaceborne hyperspectral Hyperion remote sensing data, based on the ENVI image processing software and geological exploration and remote sensing systems platform, the "MNF + PPI +N-dimensional visualization + SAM" and a series of treatment, the use of the ENVI software finally has extracted alteration minerals of the serpentine, muscovite, epidote,calcite, chlorite, kaolinite, illite, and talc; Geological exploration and remote sensing system has extracted alteration mineral serpentine, muscovite, chlorite, kaolinite, illite,talc, etc;(4)We have spent two weeks to sample and survey in the study area, and analyzed the spectra of samples indoor. The field work has found that in the south of the study area, two obvious east-west linear structures are in the large whiteboard and develop well.Alteration minerals in this region are mainly epidote, chlorite, serpentine, kaolinite, illite,muscovite;(5)Through the field investigation, verified that the indoor mapping results are in line with the actual situation, and on this basis, the comparative analysis of both platforms alteration minerals results put forward feasible suggestions for the improvement and upgrading of the geological exploration of remote sensing systems.