The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 06, 2025

Filed:

Sep. 02, 2021
Applicant:

The Johns Hopkins University, Baltimore, MD (US);

Inventors:

Brian Anderson, Mt. Airy, MD (US);

Regupathi Angappan, Baltimore, MD (US);

Robin Barnes, Elkridge, MD (US);

Sabine Stanley, Finksburg, MD (US);

Sarah Vines, Baltimore, MD (US);

Assignee:

THE JOHNS HOPKINS UNIVERSITY, Baltimore, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/40 (2005.12); B64G 1/32 (2005.12); G01V 3/36 (2005.12); G01V 3/38 (2005.12);
U.S. Cl.
CPC ...
G01V 3/40 (2012.12); B64G 1/32 (2012.12); G01V 3/36 (2012.12); G01V 3/38 (2012.12);
Abstract

A computer-implemented method includes: receipt and accession of magnetic field data from a constellation of satellites providing global coverage over the Earth in a time span less than one day; inter-calibrating the magnetic field data from all satellites to a common standard; quantifying the global magnetic disturbance and selecting quiescent intervals at least as short as one day for evaluation of Earth's internally-generated field; calculating global maps of the mean vector magnetic field for each quiet interval from the average of all satellite measurements in angular bins; converting the time sequence of global maps of the mean fields to time series of angular harmonic coefficients via direct convolution; applying spectral and regression analysis to the harmonic coefficient time series to identify and remove artifacts in the signals; reconstructing a continuous time and spatial representation of the magnetic field continuous in time and angular position globally.


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