Substitution procedure and apparatus for phased array error correction
Patent 5416489 Issued on May 16, 1995. Estimated Expiration Date: 
March 25, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 25, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod of determining excitation of individual elements of a phase array antenna from near-field data Method and apparatus for random array beamforming Data flow signal processor method and apparatus Local compensation of failed elements of an active antenna array Executive monitor for microwave landing system Patent #: 5254998 InventorAssigneeApplicationNo. 221720 filed on 03/25/1994US Classes:342/173By monitoringExaminersPrimary: Blum, Theodore M.Attorney, Agent or FirmInternational ClassG01S 007/40AbstractA technique that enables array error correction by replacing the signals from failed elements with processed signals derived from operating elements. The procedure is shown to be useful in a multisignal environment. Expressions are derived that give the signal to noise ratio of arrays with any number of failed elements with replaced signals. These relations are used to investigate the counterintuitive limiting case in which all the signals of an array are replaced by the reproduced signals. | |
