The Capon Method for Mercury's Magnetic Field Analysis

Simon Toepfer; Yasuhito Narita; Yasuhito Narita; Daniel Heyner; Uwe Motschmann; Uwe Motschmann

doi:10.3389/fphy.2020.00249

Frontiers in Physics (Jul 2020)

The Capon Method for Mercury's Magnetic Field Analysis

Simon Toepfer,
Yasuhito Narita,
Yasuhito Narita,
Daniel Heyner,
Uwe Motschmann,
Uwe Motschmann

Affiliations

Simon Toepfer: Institut für Theoretische Physik, Technische Universität Braunschweig, Braunschweig, Germany
Yasuhito Narita: Space Research Institute, Austrian Academy of Sciences, Graz, Austria
Yasuhito Narita: Institut für Geophysik und Extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
Daniel Heyner: Institut für Geophysik und Extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
Uwe Motschmann: Institut für Theoretische Physik, Technische Universität Braunschweig, Braunschweig, Germany
Uwe Motschmann: DLR Institute of Planetary Research, Berlin, Germany

DOI: https://doi.org/10.3389/fphy.2020.00249
Journal volume & issue: Vol. 8

Abstract

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Characterization of Mercury's internal and external magnetic field is one of the primary goals of the magnetometer experiment on board the BepiColombo MPO (Mercury Planetary Orbiter) spacecraft. A novel data analysis tool is developed to determine the Gauss coefficients in the multipole expansion using Capon's minimum variance projection method. The construction of the estimator is presented along with a test against the numerical simulation data of Mercury's magnetosphere and a comparison with the least square fitting method shows, that Capon's estimator is in better agreement with the coefficients, implemented in the simulation, than the least square fit estimator.

Published in Frontiers in Physics

ISSN: 2296-424X (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Physics
Website: https://www.frontiersin.org/journals/physics

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