星载合成孔径雷达遥感技术的地学应用

SAR technique and its application for geoscience

合成孔径雷达(SAR)因其具有全天时、全天候成像能力及对地物有一定穿透力等独特的优点,已成为地学研究的一个重要手段.本文对合成孔径雷达成像机理及遥感图像特征做简要介绍,对新兴起的合成孔径雷达干涉测量(INSAR)技术做简要描述,并就SAR在地学研究中的应用领域进行了列举,展示了合成孔径雷达技术在地学研究中的重要作用.

Remote sensing technique is widely used, and synthetic aperture radar (SAR )technique has become a very important means to geoscience for its ability to acquire images under all weather conditions and at all time as well as the particular penetration capabilities of microwave. This article focuses on summarizing the development of SAR technique, introducing the imaging mechanism and characteristics, describing the SAR technique briefly, and taking the examples to illuminate the application of SAR to geologic and seismic research. At last, the important functions of SAR are well confirmed. 