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. 01, 2005
Filed:
Aug. 26, 2003
Robert L. Wernli, San Diego, CA (US);
Steven J. Cowen, San Diego, CA (US);
Jimmy L. Held, San Diego, CA (US);
Gerald R. Mackelburg, San Diego, CA (US);
Donald M. Rosencrantz, San Diego, CA (US);
Aaron R. Braun, El Cajon, CA (US);
Gary D. Murphy, Spring Valley, CA (US);
Robert L. Wernli, San Diego, CA (US);
Steven J. Cowen, San Diego, CA (US);
Jimmy L. Held, San Diego, CA (US);
Gerald R. Mackelburg, San Diego, CA (US);
Donald M. Rosencrantz, San Diego, CA (US);
Aaron R. Braun, El Cajon, CA (US);
Gary D. Murphy, Spring Valley, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A submarine launched expendable radio navigation system (SSXRN) buoy method and apparatus. According to one embodiment, a method for determining a submarine geographic position using a SSXRN buoy system is disclosed. The method comprising launching a radio navigation-enabled buoy and recording a launch time and DRNS submarine position. The method further comprises recording a buoy breach time and searching for radio navigation RF signals. Then, recording a radio navigation position acquisition time and an initial radio navigation position. Further, recording a subsequent radio navigation position data and a subsequent time. Moreover, determining a DRNS correction factor using a DRNS position error, a buoy drift, radio navigation position data and DRNS position data. In addition, estimating the submarine geographic position using the DRNS correction factor and a DRNS geographic position. In another embodiment, a SSXRN buoy system is disclosed.