LAPE: Laser Altimeter for Planetary Exploration

Computer Science

Scientific paper

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Scientific paper

Laser based altimetry can be very beneficial to planetary exploration, especially in the absence of any significant a t m o s p h e r e . This technique can provide accurate i n f o r m a t i o n on the surface profile (topographic mapping) in a fast and cost effective manner, allowing, w i t h i n the characteristics of the spacecraft orbit, r e p e a t e d global coverage of the planet surface. Additional important characteristics of planetary laser altimetry are also the active measurement principle not requiring direct sun illumination, a relatively simple detection chain (as compared to radar based systems), a low resource budget (e.g. mass, power, envelope, data rate) and a relatively simple interface and integration with the spacecraft. A laser altimeter forms a key component for the ESA mission to Mercury, BepiC o l o m b o , onboard the Mercury Planetary Orbiter, MPO. The European Space Agency (ESA) is promoting the study of a generic laser altimeter for planetary exploration. This definition study will use Mercury as a reference for the definition of the environmental and operational requirements.

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