Abstract
It is cloudy and rainy perennially in many regions of China, and optical images are extremely difficult to be obtained. Synthetic aperture radar (SAR) is as a new way to provide mapping data in such areas because of the advantage of all-weather and all-time. Digital Orthophoto Map(DOM) can be generated using Airborne SAR images that has become an important means in mapping difficult areas. In this paper, DOM production process is given based on airborne InSAR data, the factors that affect airborne SAR DOM accuracy are analysed, and the quality evaluation criteria of airborne SAR DOM is introduced. There are some main technical problems such as shadow, layover, Edge Snap and cutting alignment in the DOM production process, and the solution of the problems is presented in this paper.
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