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. 25, 2020
Filed:
Jul. 15, 2019
Applicant:
Southwest Research Institute, San Antonio, TX (US);
Inventor:
Wayne D. Music, San Antonio, TX (US);
Assignee:
Southwest Research Institute, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/06 (2006.01); H01Q 3/26 (2006.01); H01Q 25/00 (2006.01); G01S 7/526 (2006.01);
U.S. Cl.
CPC ...
H04B 7/0617 (2013.01); G01S 7/526 (2013.01); G10K 2200/10 (2013.01); H01Q 3/26 (2013.01); H01Q 25/00 (2013.01);
Abstract
A numerically stable and computationally efficient method for updating and downdating during MVDR (minimum variance distortionless response) adaptive beamforming. The method involves downdating and updating of the triangular (Cholesky) factor of the covariance matrix. The covariance matrix is never explicitly formed, but rather is partitioned and expanded after substituting in the Cholesky factors.