1.Key Laboratory for Satellite Mapping Technology and Application of State Administration of Surveying,Mapping and Geoinformation of China,Nanjing University,Nanjing 210023,China 2. Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing University, Nanjing 210023, China 3.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing University, Nanjing 210023, China 4. China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China
Synthetic aperture Radar (SAR) is widely used in tropical rainforest and desert areas remote sensing geological survey by virtue of its all-day and all-weather earth observation capability and unique penetrating imaging characteristics. In this paper, the geological bodies microwave scattering mechanism which is the theoretical basis of the SAR geological application is expounded. This paper summarizes the domestic and foreign applications of SAR in geological archeology, mineral exploration, lithology and geological structure identification, reports the research progress of multi - source image fusion technology in Radar geology applications, and explains its important function in combination with practical project examples. Constrained by image characteristics, processing technology and data sources, the domestic SAR geological application remains at a very low level. With the development of hardware and software technology, the Radar remote sensing technology will become more and more important in domestic geological applications.
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