InSAR影像干涉相关性的遥感应用研究

INSAR COHERENCE IN FOREST MONITORING APPLICATION

合成孔径雷达干涉测量(InSAR)是雷达微波遥感技术的一个新研究领域。以往InSAR遥感应用研究主要集中在通过利用雷达回波信号所携带的相位信息来获取地表高程信息方面。随着InSAR研究的不断深入,干涉相位相关性中所包含的丰富信息越来越受到人们的重视,其应用领域也在不断扩大。本文所提出的基于合成孔径雷达影像干涉相位相关性信息的SAR彩色图像合成方法就是在这一新兴领域上的一个研究尝试。它能将不同类型的地物以不同的颜色直观地显示在图像上,弥补了SAR图像在遥感应用上的不足。该方法非常适合林业资源监测等方面的遥感应用研究。

SAR Interferometry （InSAR） is a new research branch in SAR remote sensing technology. In the past, InSAR application was mainly focused on acquiring DEM by means of extracting phase information preserved in RADAR backscatter. With the development of InSAR technology, importance has been increasingly attached to interferometric coherence, and its application has been extended to many fields. This paper presents a SAR image color composition model based on SAR interferometric coherence. With this model, different kinds of objects can be distinguished clearly by different colors in image, and it is proved that this technique is especially suitable for forest monitoring and land use application.