基于微波穿透性能对双极化SAR数据识别浅覆盖层岩石的研究

Based on the Study of Microwave Penetration Performance in the Dual-Polarisation SAR Data for Recognizing the Shallow Layer of Rock

在对雷达波穿透性能影响因素研究的基础上,通过对阿巴嘎地区ALOS卫星地物后向散射强度数据进行分析,显示出在不同极化方式下ALOS数据具有的差异性。结合Landsat 7卫星获得的影像数据,对其差异性进行分析,表明HH极化方式能够识别山体边缘浅覆盖层下的岩石。研究结果表明,ALOS HH极化方式对浅覆盖层下岩石的识别更具优势。

Firstly,the ALOS data of ground objects scattering intensity are analyzed in Abaga area based on the research of influence factors in the radar wave penetration performance. In terms of the data,there are the certain differences shown between diverse polarization modes of ALOS data. Then,combining acquired image data from the Landsat 7,it reflects the fact that HH polarization mode of ALOS data manages to identify the rocks which isolate beneath the shallow layer of mountains margin by the means of analysis these differences. Overall,ALOS HH polarization mode demonstrates the superiority in the identification of rocks beneath the shallow layer of mountains margin.