基于RadarSat-2全极化数据的水稻识别  

Extraction of Rice based on Quad-polarization RadarSat-2 Data

作　　者：李坤[1] 邵芸[1] 张风丽[1] 

机构地区：[1]中国科学院遥感应用研究所,北京100101

出　　处：《遥感技术与应用》2012年第1期86-93,共8页Remote Sensing Technology and Application

基　　金：国家863计划项目(2007AA12Z146)支持

摘　　要：极化信息是雷达数据的独特优势,为雷达遥感应用研究开辟了新的途径。极化分解是一种新型的极化数据处理方法,它从数学物理的角度分析目标的散射机制。基于RadarSat-2全极化数据,以贵州高原丘陵为试验区,研究水稻的极化响应特征及其时域变化规律,根据极化分解理论分析水稻及典型地物的散射机制及其差异,并根据水稻散射机制的特点提取水稻信息。Polarization information is a unique advantage of SAR data and opens up a new way for radar remote sensing application research.Polarization decomposition is a new type of polarization processing approach,analyzing the scattering mechanisms from the point of mathematics and physics in order to identify the target.In this study,we use Quad-polarization RadarSat-2 data to study polarization response of rice and its variation in time domain,analyze scattering mechanisms of rice,typical features and their differences,and then extract rice based on the characteristics of its scattering mechanism in hilly areas of Guizhou plateau.

关 键 词：RADARSAT-2 全极化 极化分解 水稻 信息提取 

分 类 号：TP722.6[自动化与计算机技术—检测技术与自动化装置] TP79[自动化与计算机技术—控制科学与工程]