Solving for ambiguities in radar geophysical exploration of planetary bodies by mimicking bats echolocation

Leonardo Carrer and Lorenzo Bruzzone ()
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Leonardo Carrer: University of Trento
Lorenzo Bruzzone: University of Trento

Nature Communications, 2017, vol. 8, issue 1, 1-12

Abstract: Abstract Sounders are spaceborne radars which are widely employed for geophysical exploration of celestial bodies around the solar system. They provide unique information regarding the subsurface structure and composition of planets and their moons. The acquired data are often affected by unwanted artifacts, which hinder the data interpretation conducted by geophysicists. Bats possess a remarkable ability in discriminating between a prey, such as a quick-moving insect, and unwanted clutter (e.g., foliage) by effectively employing their bio-sonar perfected in million years of evolution. Striking analogies occur between the characteristics of bats sonar and the one of a radar sounder. Here we propose an adaptation of the unique bat clutter discrimination capability to radar sounding by devising a novel clutter detection model. The proposed bio-inspired strategy proves its effectiveness on Mars experimental data and paves the way for a new generation of sounders which eases the data interpretation by planetary scientists.

Date: 2017
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DOI: 10.1038/s41467-017-02334-1

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