These DEMs have been used in many departments of our country.

这些高质量、多尺度的DEM产品已经在我国的经济建设中被广泛的应用.

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Different spatial scales ( scale and resolution ) DEMs have great difference in the precision of terrain description.

不同空间尺度 ( 比例尺、分辨率 ) 的DEM在地形描述精度上有很大差异.

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However, the features of topographic information of these DEMs have not been clarified.

然而, 对于这些DEM数据 的地形信息容量特征却未能从理论上予以阐明.

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Under the support of Sino - Euro cooperative project — ANFAS, this dissertation studies thegeneration of DEMs using space - borne InSAR.

在中欧国际合作第五框架中“ANFAS”项目的资助下, 本文开展了基于星载合成孔径雷达干涉测量技术的DEM生成的研究.

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