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:
Mar. 13, 2012
Filed:
Dec. 27, 2006
Thu-van T. Luu, Lumberton, NJ (US);
Jeffrey B. Boka, Lumberton, NJ (US);
Michael J. Harcourt, Sicklerville, NJ (US);
Purusottam Mookerjee, Bridgewater, NJ (US);
Thu-Van T. Luu, Lumberton, NJ (US);
Jeffrey B. Boka, Lumberton, NJ (US);
Michael J. Harcourt, Sicklerville, NJ (US);
Purusottam Mookerjee, Bridgewater, NJ (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A system senses the presence of a boosting missile or target and processes the information by comparison of the data with a plurality of predetermined templates of nominal missile characteristics, in order to determine the state of the missile. The processing includes estimation of burnout time and of early thrust termination. Both are determined by generating current stage state estimates including position, velocity, time index error into the thrust template, and motor scale factor error. The change in motor scale factor is compared with a threshold to determine if early thrust termination has occurred. The estimated burnout time of the current stage is calculated from the burnout times of the current and the previous stage processed with the estimated motor scale factor and with state estimates from a filter.