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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >First Bistatic Spaceborne SAR Experiments With TanDEM-X
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First Bistatic Spaceborne SAR Experiments With TanDEM-X

机译：TanDEM-X首次进行双基地星载SAR实验

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摘要

TanDEM-X (TerraSAR-X Add-on for Digital Elevation Measurements) is a high-resolution interferometric mission with the main goal of providing a global and unprecedentedly accurate digital elevation model of the Earth surface by means of single-pass X-band synthetic aperture radar (SAR) interferometry. Despite its usual quasi-monostatic configuration, TanDEM-X is the first genuinely bistatic SAR system in space. During its monostatic commissioning phase, the system has been mainly operated in pursuit monostatic mode. However, some pioneering bistatic SAR experiments with both satellites commanded in nonnominal modes have been conducted with the main purpose of validating the performance of both space and ground segments in very demanding scenarios. In particular, this letter reports about the first bistatic acquisition and the first single-pass interferometric (mono-/bistatic) acquisition with TanDEM-X, addressing their innovative aspects and focusing on the analysis of the experimental results. Even in the absence of essential synchronization and calibration information, bistatic images and interferograms with similar quality to pursuit monostatic have been obtained.
机译：TanDEM-X（用于数字高程测量的TerraSAR-X附加组件）是一项高分辨率干涉仪任务，其主要目标是通过单通X波段合成来提供全球且前所未有的准确的地球表面数字高程模型孔径雷达（SAR）干涉测量法。尽管具有通常的准单静态配置，TanDEM-X是太空中第一个真正的双静态SAR系统。在其单静态调试阶段，该系统主要在追求单静态模式下运行。但是，已经进行了一些开创性的双基地SAR实验，以非标称模式命令了这两种卫星，其主要目的是在非常苛刻的情况下验证空间和地面部分的性能。特别是，这封信报道了使用TanDEM-X进行的首次双站采集和首次单程干涉测量（单站/双站）采集，着眼于它们的创新方面，并着重于对实验结果的分析。即使没有必要的同步和校准信息，也可以获得质量与追求单静态相似的双基地图像和干涉图。

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