Inertial measurement system with self correction

Details Inertial measurement system with self correction Inertial measurement system with self correction

2011-08-30

2011-08-30

Cosimano, Edward R (Department: 2857)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Sensor or transducer

C073S001010, C073S001370, C073S001380, C073S001750, C702S150000

Reexamination Certificate

active

08010308

ABSTRACT:
A method of navigation includes providing an angular rate sensor and a direction-of-gravity reference. The method also includes determining bias error of the angular rate sensor about a vertical axis based on data substantially from the angular rate sensor and from the direction-of-gravity reference. In one embodiment, the first angular rate sensor is moved from a first position around a substantially horizontal axis to a second position around the substantially horizontal axis. The first angular rate sensor provides angular rate data for attitude at the first position and for compass heading at the second position. Data from the first angular rate sensor and from the direction-of-gravity reference is processed with a program for determining a bias error correction for the first angular rate sensor while the first angular rate sensor is in the first position. Bias error correction determined while the first angular rate sensor is in the first position is used to correct angular rate of the first angular rate sensor while the first angular rate sensor is in the second position.

REFERENCES:
patent: 3281581 (1966-10-01), Lerman et al.
patent: 3648525 (1972-03-01), Reed
patent: 5235514 (1993-08-01), Matsuzaki
patent: 5319561 (1994-06-01), Matsuzaki
patent: 5645077 (1997-07-01), Foxlin
patent: 5807284 (1998-09-01), Foxlin
patent: 5887351 (1999-03-01), Arms et al.
patent: 5935191 (1999-08-01), Sakanashi et al.
patent: 5956660 (1999-09-01), Neumann
patent: 6162191 (2000-12-01), Foxlin
patent: 6305221 (2001-10-01), Hutchings
patent: 6361507 (2002-03-01), Foxlin
patent: 6529127 (2003-03-01), Townsend
patent: 6786877 (2004-09-01), Foxlin
patent: 6834436 (2004-12-01), Townsend
patent: 6871413 (2005-03-01), Arms
patent: 7081693 (2006-07-01), Hamel
patent: 7143004 (2006-11-01), Townsend
patent: 7170201 (2007-01-01), Hamel
patent: 7210240 (2007-05-01), Townsend
patent: 7366612 (2008-04-01), Yang et al.
patent: 7672781 (2010-03-01), Churchill et al.
patent: 2003/0023192 (2003-01-01), Foxlin
patent: 2004/0078662 (2004-04-01), Hamel
patent: 2005/0065728 (2005-03-01), Yang et al.
patent: 2005/0105231 (2005-05-01), Hamel
patent: 2005/0116544 (2005-06-01), Hamel
patent: 2005/0116545 (2005-06-01), Hamel
patent: 2005/0140212 (2005-06-01), Hamel
patent: 2005/0146220 (2005-07-01), Hamel
patent: 2006/0103534 (2006-05-01), Arms
patent: 2007/0073482 (2007-03-01), Churchill et al.
patent: 2008/0294342 (2008-11-01), Hoshizaki et al.
U.S. Appl. No. 12/173,017, filed Jul. 14, 2008, Arms, non-published patent application.
Eric Foxlin , Pedestrian tracking with shoe-mounted intertial sensors,IEEE computer graphics and applications, 0272-1716/05, Nov.-Dec. 2005. USA.
Rantakokko, J. et al., Positioning of emergency personnel in rescue operations—possibilities and vulnerabilities with existing techniques and identification of needs for future R&D, Technical report TRITA-EE, Sponsored by the Swedish Defence Research Agency, Stockholm, Jul. 2007.
Randell, C. et al, “Personal Position Measurement Using Dead Reckoning”, Proceedings of the Seventh IEEE International Symposium on Wearable Computers (ISWC'03), 1530-0811/03 $ 17.00 © 2003 IEEE.
Beauregard, “Omnidirectional Pedestrian Navigation for First Responders”, Technologie-Zentrum Informatik, University at Bremen, 28359 Bremen, Germany.
Vissiere, D. et al, “Using magnetic disturbances to improve IMU-based position estimation”, Proc. of the European Control Conf., Kos, Greece, Jul. 2-5, 2007.
Savage, Paul G., Strapdown Analytics, book published by Strapdown Associates, Inc., Maple Plain, MN, 1997.

Affiliated with

Also associated with

Rating

Inertial measurement system with self correction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inertial measurement system with self correction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inertial measurement system with self correction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2751045