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:
Oct. 08, 2013
Filed:
Jan. 15, 2012
Michael S. Bielas, Tucson, AZ (US);
Edward C. Schlatter, Tucson, AZ (US);
Andrew B. Facciano, Tucson, AZ (US);
Philip C. Theriault, Tucson, AZ (US);
James A. Ebel, Vail, AZ (US);
Robert J. Laporte, Tucson, AZ (US);
Michael S. Bielas, Tucson, AZ (US);
Edward C. Schlatter, Tucson, AZ (US);
Andrew B. Facciano, Tucson, AZ (US);
Philip C. Theriault, Tucson, AZ (US);
James A. Ebel, Vail, AZ (US);
Robert J. LaPorte, Tucson, AZ (US);
Raytheon Company, Waltham, MA (US);
Abstract
The 6-axis position and attitude of an imaging vehicle's detector assembly is measured by mounting the detector assembly on a compliant isolator and separating the main 6-axis IMU on the vehicle from a secondary IMU comprising at least inertial rate sensors for pitch and yaw on the detector assembly. The compliant isolator couples low-frequency rigid body motion of the vehicle below a resonant frequency to the isolated detector assembly while isolating the detector assembly from high-frequency attitude noise above the resonant frequency. A computer processes measurements of the 6-axis rigid body motion and the angular rate of change in yaw and pitch of the isolated detector assembly to mitigate the drift and noise error effects of the secondary inertial rate sensors and estimate the 6-axis position and attitude of the detector assembly.