摘要
极化干涉合成孔径雷达(PolInSAR)在城市遥感领域中扮演着重要角色。它能够提高图像的相干性并提高反演结果的精度,所以对于其散射机制的解释往往受到许多研究人员的关注。相关的研究多从极化分解的角度考虑,却少有人从散射中心高度方面进行分析。本文使用Ku波段无人机载极化干涉SAR系统,实现了使用无人机SAR系统对地面进行成像,比较了极化干涉最优分解与Pauli分解作用在不同人造目标时散射中心的关系。我们初步分析了极化干涉SAR的物理意义,并使用C波段的机载极化干涉SAR系统对结论进行验证。
Polarimetric interferometric SAR(PolInSAR)can improve the coherence of images and it plays an important role in urban remote sensing.The explanation of its scattering mechanism is concerned by many researchers.It is always explained from the aspect of different polarization decompositions but seldom from the height of scattering centers.In this paper,we use a UAV-borne system to do SAR imaging and a Ku-band UAV-borne PolInSAR system is used to compare the relationship of scattering centers between PolInSAR and Pauli decomposition on different artificial targets.The physical meaning of PolInSAR is preliminary analyzed and our conclusion is also verified through a C-band manned airborne PolInSAR system.
作者
吕泽鑫
仇晓兰
丁赤飚
LYU Zexin;QIU Xiaolan;DING Chibiao(Key Laboratory of Technology in Geo-Spatial Information Processing and Application System,Chinese Academy of Sciences,Beijing 100190,China;Key Laboratory of Intelligent Aerospace Big Data Application Technology,Suzhou 215124,China;Suzhou Aerospace Information Research Institute,Suzhou 215124,China;Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100190,China;School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 100094,China)
出处
《雷达科学与技术》
北大核心
2022年第5期475-479,491,共6页
Radar Science and Technology
基金
国家自然科学基金(No.61991421,62022082)。
关键词
极化干涉SAR
无人机
Pauli分解
散射中心
polarimetric interferometric SAR
unmanned aerial vehicle(UAV)
Pauli decomposition
scattering center
