Modification of Synthetic Aperture Radar Geometry for Advanced Configurations

Conference: EUSAR 2018 - 12th European Conference on Synthetic Aperture Radar
06/04/2018 - 06/07/2018 at Aachen, Germany

Proceedings: EUSAR 2018

Pages: 4Language: englishTyp: PDF

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Li, Dexin; He, Feng; Dong, Zhen; Wu, Manqing (National University of Defense Technology, P.R. China)

Classical linear trajectory geometry of synthetic aperture radar (SAR) is not accurate enough for the advanced configurations, e.g. bistatic, medium-high orbit, geosynchronous, geostationary, ultra high resolution. As a consequence, the applications of SAR theories like the simulations and focusing algorithms based on the linear trajectory assumption are also seriously restricted. In this paper, SAR geometry with the curved trajectory, related models and parameters are built and derived. Comparison between the classical and modified theories is carried out. The accuracy of the modified geometry, models and derivations are validated with the simulating experiments.