Title :
EO target geolocation determination
Author_Institution :
Hughes Aircraft Co., El Segundo, CA, USA
Abstract :
Geolocation determination of a ground target using received imagery and navigation data from an air-borne electro-optical infrared (EO-IR) sensor is described in this paper. For precision target hand-off to Global Position System (GPS) guided weapon systems, target geolocation determination has a goal of 10 meters, 50% circular error probable (CEP) accuracy for the EO-IR imaging system. A Kalman filter capable of processing data generated from a multiple look operation is developed to enhance target geolocation CEP performance and, at the same time, to relax hardware requirements. Covariance analysis results indicate that the state-of-the-art GPS/inertial navigation system, precision gimbal angle read-out, and accurate target altitude estimate coupled with the developed multi-state Kalman filtering algorithm are required to meet this 10 meters CEP target geolocation goal
Keywords :
Global Positioning System; Kalman filters; covariance analysis; inertial navigation; infrared imaging; matrix algebra; missile guidance; object recognition; target tracking; tracking; tracking filters; GPS guided weapon systems; Global Position System; Kalman filter; altitude estimate; circular error probable accuracy; covariance analysis; electro-optical IR sensor; inertial navigation system; multiple look operation; state transition matrix; target geolocation determination; target tracking; Algorithm design and analysis; Electrooptic devices; Global Positioning System; Hardware; Inertial navigation; Infrared image sensors; Optical imaging; Sensor phenomena and characterization; State estimation; Weapons;
Conference_Titel :
Decision and Control, 1995., Proceedings of the 34th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-2685-7
DOI :
10.1109/CDC.1995.478535
