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.
Patent No.:
Date of Patent:
Feb. 09, 2016
Filed:
Feb. 08, 2013
Applicant:
California Institute of Technology, Pasadena, CA (US);
Inventors:
Philip John Stephens, Thousand Oaks, CA (US);
Attila Komjathy, La Crescenta, CA (US);
Brian D. Wilson, Altadena, CA (US);
Anthony J. Mannucci, Pasadena, CA (US);
Assignee:
California Institute of Technology, Pasadena, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/07 (2010.01); G01S 19/03 (2010.01); G01S 19/21 (2010.01); G01S 19/14 (2010.01);
U.S. Cl.
CPC ...
G01S 19/21 (2013.01); G01S 19/14 (2013.01);
Abstract
A method, system, and apparatus provide the ability to estimate ionospheric observables using space-borne observations. Space-borne global positioning system (GPS) data of ionospheric delay are obtained from a satellite. The space-borne GPS data are combined with ground-based GPS observations. The combination is utilized in a model to estimate a global three-dimensional (3D) electron density field.