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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >TanDEM-X First DEM Acquisition: A Crossing Orbit Experiment
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TanDEM-X First DEM Acquisition: A Crossing Orbit Experiment

机译：TanDEM-X首次获得DEM：穿越轨道实验

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摘要

This letter describes the first interferometric acquisitions and results obtained by the TerraSAR-X add-on for Digital Elevation Measurements mission. Due to the large along-track separation between the two satellites during the approaching maneuver and the Earth's rotation, useful interferometric acquisitions were only possible at high latitudes. This resulted in a crossing angle between the ground tracks whose impact was corrected by acquiring the two synthetic-aperture radar images with an opposite squint. The still very large 2-km cross-track baseline resulted in a 3.8-m interferometric height of ambiguity, producing extremely detailed images of the topography of the target area. Results acquired over the October Revolution Island, Russia, are shown and discussed.
机译：这封信描述了用于数字高程测量任务的TerraSAR-X附件的首次干涉测量和获得的结果。由于在接近机动和地球自转过程中两颗卫星之间沿轨道的间隔较大，因此只有在高纬度地区才可能进行有用的干涉测量。这导致了地面轨迹之间的交叉角，通过获取两个斜视相反的合成孔径雷达图像，可以纠正其影响。仍然非常大的2 km跨轨基线导致3.8 m的干涉仪高度模糊性，产生了目标区域地形的非常详细的图像。显示并讨论了在俄罗斯十月革命岛上获得的结果。

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