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. 12, 2002
Filed:
Dec. 28, 2001
Khalil J. Maalouf, Clifton Park, NY (US);
Jeffrey M. Ashe, Gloversville, NY (US);
Naofal Al-Dhahir, Morristown, NJ (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
Interference in a GPS receiver in minimized while preserving the GPS satellite signal in a system having N antenna elements for receiving the interference signal and the satellite signal and multiple tapped delay line structures connected to the antenna elements for filtering the signals received by the antenna elements based a plurality of filter coefficients. The filter coefficients are determined such that the plurality of filter coefficients equals R C[C R C] F wherein C {tilde over (w)}=F, where {tilde over (w)} equals the plurality of filter coefficients, R equals a covariance matrix, and C and F are determined to preserve a frequency spectrum of the GPS satellite signal.