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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Building characterization using L-band polarimetric interferometric SAR data
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Building characterization using L-band polarimetric interferometric SAR data

机译:使用L波段极化干涉SAR数据进行建筑物表征

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This letter proposes a building characterization technique for L-band polarimetric interferometric synthetic aperture radar (SAR) data. This characterization consists of building identification and height estimation. Initially, a polarimetric interferometric segmentation is performed to isolate buildings from their surroundings. This classification identifies three basic categories: single bounce, double bounce, and volume diffusion. In order to compensate for the misclassifications among the volume and the double-bounce classes, interferometric phases given by the high-resolution Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT) method are analyzed. Once buildings are localized, a phase-to-height procedure is applied to retrieve building height information. The method is validated using E-SAR, German Aerospace Center (DLR) fully polarimetric SAR data, at L-band, repeat-pass mode, over the Oberpfaffenhofen, Germany, test site, with a spatial resolution of 1.5 m in range and azimuth. More than 80% of buildings are retrieved with acceptably accurate height estimates.
机译:这封信提出了一种用于L波段极化干涉式合成孔径雷达(SAR)数据的建筑物表征技术。此特征包括建筑物识别和高度估计。最初,执行极化干涉式分割以将建筑物与周围环境隔离。此分类确定三个基本类别:单次反射,两次反射和体积扩散。为了补偿音量和双反弹类别之间的错误分类,分析了通过旋转不变技术(ESPRIT)方法对信号参数进行高分辨率估计而得出的干涉相位。建筑物定位后,将执行“相高过程”以检索建筑物高度信息。使用E-SAR,德国航空航天中心(DLR)的全极化SAR数据在L波段,重复通过模式下,在德国Oberpfaffenhofen的测试地点进行了验证,其空间分辨率和方位角为1.5 m 。超过80%的建筑物以可接受的准确高度估计进行检索。

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