The Capon Method for Mercury's Magnetic Field Analysis

The Capon Method for Mercury's Magnetic Field Analysis
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用于水星磁场分析的 Capon 方法

DOI:
10.3389/fphy.2020.00249
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发表时间:
2020
期刊:
Journal of Geophysical Research: Space Physics
影响因子:
--
通讯作者:
U. Motschmann
U. Motschmann
中科院分区:
--
文献类型:
--
作者:
S. Toepfer;Y. Narita;D. Heyner;U. Motschmann

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水星内部和外部磁场的表征是BepiColombo(水星行星轨道器)航天器上的磁力计实验的主要目标之一。提出了一种利用Capon最小方差投影法确定多极展开高斯系数的数据分析方法。通过对水星磁层数值模拟数据的测试,给出了Capon估计量的构造,并与最小二乘拟合方法进行了比较,结果表明Capon估计量比最小二乘拟合估计量更符合模拟中实现的系数。
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.
DOI: 10.1016/j.pss.2017.12.016
发表时间: 2018-04-01
影响因子: 2.4
作者:
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通讯作者: Shibayama, T.
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DOI: 10.1016/j.epsl.2011.02.035
发表时间: 2011
影响因子: 5.3
作者:
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通讯作者: Cao H