A new interferogram simulator : 2SIR. Study of coherence losses for tortured reliefs
نویسندگان
چکیده
Recent developments in interferometric radar technique largely highlighted potentialities of radar interferometry for the generation of high resolution DEM (Digital Elevation Models). Nevertheless, the performances of this almost automatic process are strongly degraded for tortured reliefs and for vegetation areas. A research in progress with the CNES (Centre National d'Etudes Spatiales), CSSI (Communication & System, group "Systeme d'Information") and the IRIT (Institut de Recherche en Informatique de Toulouse) proposes to approach these phenomena by the means of simulation. So a new simulator, called 2SIR (Simulateur d'Images Radar & Simulateur d'Interférogrammes Radar), has been developed in which complex scenes can be described. As a first application, this simulator is used to reproduce and study coherence losses for tortured reliefs and the appropriateness of classical coherence to characterize interferograms quality is also discussed.
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