Abstract
Orbital radar sounders are an effective tool to investigate the interior of planetary bodies. Typically, the sounding signal lies in the High Frequency (HF) or Very High Frequency (VHF) band, allowing a good ground penetration but a limited range resolution. Moreover, Electromagnetic Interference (EMI) may affect the system, increasing the noise in the radar products. In this paper, we propose methods to enhance the resolution and to suppress the EMI, exploiting a linear prediction based approach. Using simulated data, we investigate the methods' performance and the parameter settings. Finally, we apply the methods to data of the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS).
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