Application of Synthetic Aperture Radar image processing in magnetic susceptibility inversion

Abstract

Few people use remote sensing computer image processing technology to explore the magnetic susceptibility of large areas. As an important parameter of geological and environmental evolution, magnetic susceptibility is widely used in loess, rivers, lakes, marine sedimentary facies, paleoenvironment reconstruction and so on. In the experiment, the microwave radar image is processed by computer image processing to obtain the backscattering coefficient of the image. The results are obtained by Dubois model to invert the dielectric constant of the ground objects in the Xingcheng study area, the results of the fitting equation are then used to invert the magnetic susceptibility of rocks in the studied area. The results show that the magnetic susceptibility of different lithology is different, the value is influenced by lithology and minerals, and metamorphic rock is a little larger than sedimentary rock only considering lithology. The experiment provides a possibility to obtain the regional geomagnetic magnetic susceptibility using microwave radar data.