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:
Nov. 03, 2020
Filed:
Feb. 22, 2018
Yash Vasavada, Gaithersburg, MD (US);
Channasandra Ravishankar, Clarksburg, MD (US);
John Corrigan, Chevy Chase, MD (US);
Gaguk Zakaria, College Park, MD (US);
Xiaoling Huang, Boyds, MD (US);
Yash Vasavada, Gaithersburg, MD (US);
Channasandra Ravishankar, Clarksburg, MD (US);
John Corrigan, Chevy Chase, MD (US);
Gaguk Zakaria, College Park, MD (US);
Xiaoling Huang, Boyds, MD (US);
Hughes Network Systems, LLC, Germantown, MD (US);
Abstract
A system and method for estimating calibration parameters and locating a Calibration Earth Station (CES) is described. The method may be performed offline. The method includes: providing L×M pilot signal measurements in a matrix R from L CESs and the M feed elements, wherein the matrix R comprises a set of channel coefficients c={c1, c2, . . . , cM}, and k={k1, k2, . . . , kL} perturbations; linking a subset of channel coefficients {c1, c2, . . . , cM} using each of the L CESs; and estimating a relative estimate of the k={k1, k2, . . . , kL} pertubations across the L CESs by using each of the L CESs as a bridging element. In the method, the bridging element provides a strong pilot signal for at least two of the L CESs. A set of criteria for determining locations of CESs have been described. A set of desirable properties for the solution set of L CESs have been disclosed. A combination of inner loop and outer loop methods for determining the final set of optimal locations have been described.