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:
Apr. 02, 2002
Filed:
Aug. 10, 2000
Thomas W. Miller, Yorba Linda, CA (US);
Christopher W. Reed, Novato, CA (US);
Raytheon Company, Lexington, MA (US);
Abstract
A phase-stabilized adaptive array system with a moving antenna array and a plurality of signal channels coupled to the antenna array, each for producing a channel signal. Each channel has adaptive signal weighting apparatus for weighting the channel signal by a channel weight. The system includes combining apparatus for combining the weighted channel signals to form a beam signal, and phase compensation apparatus for applying phase compensation weights to the array signals or the beam signal which vary in dependence on the array position such that the response to a signal at a known direction is held substantially constant while the antenna is moved, or as the weights are updated. A method for operating an adaptive array includes rotating the antenna array with respect to a target, providing a plurality of signal channels coupled to the antenna array, each for producing a channel signal, adaptively weighting each channel signal by a channel weight, and combining the weighted channel signals to form a beam signal. The method further includes, for phase stabilizing the response to a target at a given angular position, applying phase compensation weights to the array signals or the beam signal which vary in dependence on the antenna position such that the response to a signal at a known direction is held substantially constant while the antenna rotates, or as the weights are updated.