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1·Interferometric Synthetic Aperture Radar is an effective technique to get Digital Elevation Model and orthophoto map.

干涉合成孔径雷达是获取场景数字高程模型和正射影像图的有效技术之一。

2·This paper describes a method for orthophoto updating rapidly based on a local interest area in the case of rapid topographic support.

本文探讨了一种在应急测绘保障情况下基于城市目标区域的正射影像快速更新方法。

3·Thus, the paper gives the the concept of corresponding digital orthophoto map applying to stereo scene, and discusses the theory, characteristic, production and application in city management.

为此，作者提出了能够进行立体观察的同名数字正射影像图的概念，并详细阐述了这一产品的实现原理、技术特色、生产方法和在城市管理中的应用。