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:
Jun. 28, 2011
Filed:
Apr. 13, 2009
Fast implementation of a maximum likelihood algorithm for the estimation of target motion parameters
Theagenis J. Abatzoglou, Huntington Beach, CA (US);
Johan Enmanuel Gonzalez, El Segundo, CA (US);
Theagenis J. Abatzoglou, Huntington Beach, CA (US);
Johan Enmanuel Gonzalez, El Segundo, CA (US);
Raytheon Company, Waltham, MA (US);
Abstract
A system and method for implementing a maximum likelihood estimator for making a joint estimation of range, range rate, and acceleration of a target utilizing a pulse doppler radar. The MLE of target motion parameters are determined by keystone processing a baseband signal, and generating a first estimate of the motion parameters based on the processed signal. The first estimate is utilized to set up sampling intervals for the performance of a coarse search. Then a fine search is performed using Newton's method to determine the MLE.