Time-delayed reflections in L-band synthetic aperture radar imagery of icebergs
Time-delayed reflections in L-band synthetic aperture radar imagery of icebergs
复制标题
L 波段合成孔径雷达冰山图像中的时滞反射
DOI：
10.1109/36.73670
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
L. Arsenault
中科院分区：
文献类型：
--
作者：
A. Gray;L. Arsenault
在冰山的一些 L 波段合成孔径雷达图像中，存在相对较强的反射，这些反射在重合的 X 波段图像上不存在，并且与可归因的表面粗糙度或特征不对应。由于这些虚假图像出现在冰山的下方，因此最初将它们解释为冰山内的多次反射。结果表明，大多数观测结果对应于冰山底面冰水界面进出的预期位置。讨论了控制底面反射观测的因素及其在水下吃水方面的意义。 >
In some L-band synthetic aperture radar imagery of icebergs, there are relatively strong reflections which do not exist on the coincident X-band imagery and which do not correspond to attributable surface roughness or features. As these false images appear on the down-range side of the iceberg, they were originally explained as multiple reflections within the iceberg. It is shown that the majority of the observations correspond to the expected positions of a transit to and from the ice-water interface at the bottom surface of the iceberg. Factors governing observation of the bottom surface reflection and its significance in terms of underwater draught are discussed. >