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:
Sep. 30, 2008
Filed:
Oct. 16, 2003
Joseph P. Kennedy, Jr., Great Falls, VA (US);
John P. Carlson, Herndon, VA (US);
Thomas B. Gravely, Herndon, VA (US);
Martin Alles, Hamilton Parish, BM;
Joseph P. Kennedy, Jr., Great Falls, VA (US);
John P. Carlson, Herndon, VA (US);
Thomas B. Gravely, Herndon, VA (US);
Martin Alles, Hamilton Parish, BM;
Andrew Corporation, Melbourne, FL (US);
Abstract
A method for enabling a system to enhance the accuracy of a location estimate modifies weights in a weight matrix associated with receiver station measurements in parallel with successive refinements of the location estimate. In a typical location estimation scenario, several receiving stations simultaneously derive measurements of a signal from the emitter. Any one of these measurements is in general some function of the emitter location and the receiving station location. The aggregate of these measurements is often in excess of the minimum number of measurements required to provide an estimate of the emitter location. Where such an excess exists, the method proceeds by modifying the weights associated with the measurements in parallel with successive refinements of the location estimate. The method can be implemented over various cellular protocols with a consistent and significant enhancement in the accuracy of location estimates.