A New Approach of Terrain Estimation using Multi-aspect Satellite SAR Imagery

Konferenz: EUSAR 2021 - 13th European Conference on Synthetic Aperture Radar
29.03.2021 - 01.04.2021 in online

Tagungsband: EUSAR 2021

Seiten: 5Sprache: EnglischTyp: PDF

Feng, Shanshan; Shen, Wenjie; Teng, Fei; Hong, Wen (Aerospace Information Research Institute, Chinese Academy of Sciences, No.9 Dengzhuang South Road, Haidian District, Beijing, China & University of Chinese Academy of Sciences, China & Key Laboratory of Technology in Geospatial Information Processing and Application System,Institute of Electronics, Chinese Academy of Sciences, China)
Lin, Yun; Wang, Yanping (School of Electronic Information Engineering, North China University of Technology, China)

This paper presents a new method for terrain estimation using multi-aspect satellite Synthetic Aperture Radar(SAR) images. Multi aspect observation can obtain more abundant information of ground targets. An elevation extraction model is built under multi-aspect satellite SAR geometry, where a coefficient k is deduced to describe the relationship between elevation difference and offset of image points. Image pairs are converted into ground coordinate system. Then the distance between image points can be inverted to elevation. We experiment on two GaoFen-3 spotlight images(both from descending orbit but with different look directions)acquired over the area of Shanghai .Preliminary result is presented.