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. 09, 2010
Filed:
Mar. 30, 2006
Gerald L. Fudge, Rockwall, TX (US);
Gerald L. Fudge, Rockwall, TX (US);
L3 Communications Integrated Systems, L.P., Greenville, TX (US);
Abstract
The present invention is a method and computer program for equalizing group delay and magnitude of a system for which a system response is known. The method and computer program are implemented via a finite impulse response ('FIR') filter for the system, and the method broadly comprises the steps of: evaluating a desired response for the system as a function of an amplitude of the system and a phase of the system; separating the phase of the system into a linear component and a non-linear component; performing a first optimization by minimizing a weighted error between a desired response for the system and a cascaded response for the system as a function of an equalizing filter and a phase slope so as to obtain at least one local smallest error E(Ω) as a function of phase slope; and once the local smallest error E(Ω) is known, performing a second optimization to locate any existing global smallest error, wherein the global smallest error is within a set distance from the local smallest error.