CARTACCI, MARCOMARCOCARTACCICICCHETTI, ANDREAANDREACICCHETTINOSCHESE, RAFFAELLARAFFAELLANOSCHESE2023-02-062023-02-062010http://hdl.handle.net/20.500.12386/33164The primary task of Level 2 data processor is the Range Compression of the Marsis collected echoes during the subsurface modes (except for the SS2 Mode) and transmitted to the ground. These data are only compressed in azimuth on board (Doppler Filters output). Since these data have been distorted by the Ionosphere, we cannot use an ideal reference function (the ideal chirp) for range compression. Therefore we shall use the Contrast Method to estimate the Ionospheric distortion and to calculate a complex correction to modify the Ideal Reference Function in order to optimize the compressed signal.ELETTRONICOenResearch reportFIS/05 - ASTRONOMIA E ASTROFISICA