E-SAR - RGI/GTC/INF

E-SAR, “Experimental-SAR”, is an airborne imaging radar (Synthetic Aperture Radar) sensor operated by the German Aerospace Center (DLR), Microwaves and Radar Institute (HR) from 1988 until November 2009. It was operated on a Dornier Do-228 aircraft from altitudes of 2000 to 6000 m above ground in four different center frequency bands (X,C,L,P). Different center frequencies were operated sequentially in different overflights. Data were acquired either in one-channel, two-channel or four-channel mode in HH, HV, VV and/or VH polarization. Fully polarimetric data are available in L- and P-band only. Repeat-pass interferometry is available in L- and P-band. Single-pass interferometry is available in X-band only, in along- and across-track antenna configuration. Data are processed up to two different levels: RGI (Radar Geometry Image product) and GTC (Geocoded and Terrain-Corrected product). Resolutions range from 25 cm (X-band) to 1.5 m (P-band) in azimuth direction and from 1.8 m (X-band) to 3 m (P-band) in range direction. Data acquisition modes are “stripmap”, “repeat-pass” (two parallel tracks) or “tomography” (several parallel tracks). For more information concerning E-SAR data, the reader is referred to: www.dlr.de/hr/e-sarE-SAR，即“Experimental-SAR（实验合成孔径雷达）”，是德国航空航天中心（DLR）微波与雷达研究所（HR）于1988年至2009年11月期间运行的机载成像雷达（合成孔径雷达，Synthetic Aperture Radar）传感器。该传感器曾搭载于多尼尔Do-228飞机，作业高度为距地面2000至6000米，支持X、C、L、P四个中心频带，不同中心频带将在不同飞越航次中依次启用。 数据采集可采用单通道、双通道或四通道模式，极化方式涵盖HH、HV、VV及/或VH。仅L波段与P波段可获取全极化数据；L波段与P波段支持重复航过干涉测量，仅X波段支持单航过干涉测量，且采用沿轨与交轨天线配置。 数据可处理至两个标准层级：RGI（雷达几何图像产品，Radar Geometry Image product）与GTC（地理编码与地形校正产品，Geocoded and Terrain-Corrected product）。其方位向分辨率范围为25厘米（X波段）至1.5米（P波段），距离向分辨率范围为1.8米（X波段）至3米（P波段）。 数据采集模式包括“stripmap（条带模式）”、“repeat-pass（重复航过模式，双平行航迹）”及“tomography（层析成像模式，多平行航迹）”。如需了解更多E-SAR数据相关信息，请参考：www.dlr.de/hr/e-sar

搜集汇总

背景与挑战

背景概述

该数据集包含德国航空航天中心（DLR）运营的E-SAR机载合成孔径雷达（SAR）传感器从1999年至2009年采集的数据，覆盖全球范围，具有多频段（X、C、L、P）、全极化和干涉测量能力，提供RGI和GTC两种处理级别的产品，数据需通过请求获取。