A navigation scheme for pinpoint mars landing using radar altimetry, a digital terrain model, and a particle filter

Brian Gaudet, Roberto Furfaro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Future science-driven missions to Mars will require advanced guidance and navigation algorithms that are able to adapt to more demanding mission requirements by landing at selected locale with pinpoint accuracy while autonomously flying fuel-efficient trajectories. Current practice for navigation as applied to the powered descent phase of a Mars landing estimates the lander's downrange and crossrange position using inertial measurements and the lander's elevation using radar altimetry. As a consequence, only the lander's altitude may be accurately estimated, and downrange and crossrange position estimation errors that accumulate between the cruise stage separation and landing results in downrange and crossrange position uncertainties on the order of several kilometers. In this paper we present a novel real-time navigation algorithm that uses radar altimetry, a digital terrain model, and a particle filter to estimate the lander's position to an accuracy of several meters. We demonstrate how the navigation algorithm can be coupled with ZEM/ZEV guidance to achieve pinpoint landings on two targets unreachable using current practice: The bottom of Zumba crater and a hilltop in Uzboi Valis.

Original languageEnglish (US)
Title of host publicationAdvances in the Astronautical Sciences
PublisherUnivelt Inc.
Pages2537-2556
Number of pages20
Volume150
ISBN (Print)9780877036050
Publication statusPublished - 2014
Event2013 AAS/AIAA Astrodynamics Specialist Conference, Astrodynamics 2013 - Hilton Head Island, SC, United States
Duration: Aug 11 2013Aug 15 2013

Other

Other2013 AAS/AIAA Astrodynamics Specialist Conference, Astrodynamics 2013
CountryUnited States
CityHilton Head Island, SC
Period8/11/138/15/13

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ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Gaudet, B., & Furfaro, R. (2014). A navigation scheme for pinpoint mars landing using radar altimetry, a digital terrain model, and a particle filter. In Advances in the Astronautical Sciences (Vol. 150, pp. 2537-2556). Univelt Inc..