Adaptive compensation of ionosphere dispersion to improve subsurface detection capabilities in low-frequency radar systems

Giovanni Picardi; S. Sorge

doi:10.1117/12.383492

27 April 2000 Adaptive compensation of ionosphere dispersion to improve subsurface detection capabilities in low-frequency radar systems

Giovanni Picardi, S. Sorge

Author Affiliations +

Proceedings Volume 4084, Eighth International Conference on Ground Penetrating Radar; (2000) https://doi.org/10.1117/12.383492
Event: 8th International Conference on Ground Penetrating Radar, 2000, Gold Coast, Australia

Abstract

The present paper describes an adaptive range compression procedure for the compensation of the phase dispersion effects induced on low frequency radar echoes propagating through a ionized plasma, such as a planetary Ionosphere. The method is based on an equivalent model of the Ionosphere refraction index which outperforms currently available models in representing the ionosphere dispersion when the sounding frequency approaches the Ionosphere plasma frequency. The expected performance of the method is derived in the specific case of the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS), which will flight to MARS in 2003 aboard the Mars Express orbiter. Reported results indicate that the proposed algorithm gives acceptable residual distortions even when the operating frequency is very close to the ionospheric plasma frequency.

Citation Download Citation

Giovanni Picardi and S. Sorge "Adaptive compensation of ionosphere dispersion to improve subsurface detection capabilities in low-frequency radar systems", Proc. SPIE 4084, Eighth International Conference on Ground Penetrating Radar, (27 April 2000); https://doi.org/10.1117/12.383492

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