Method and system for estimation of inertial sensor errors...

Details Method and system for estimation of inertial sensor errors... Method and system for estimation of inertial sensor errors...

2011-07-12

2011-07-12

Kundu, Sujoy K (Department: 2857)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Sensor or transducer

C702S105000, C702S141000, C702S142000, C702S145000, C702S150000, C702S151000, C702S152000, C702S153000, C702S154000, C702S158000, C701S220000

Reexamination Certificate

active

07979231

ABSTRACT:
A method and system for estimation of inertial sensor errors is provided. The method includes receiving first inertial output data from a master inertial measurement unit (IMU) mounted on a host platform, with the first inertial output data comprising a change in velocity (delta V) and a change in angle (delta theta), and receiving second inertial output data from a remote IMU mounted on the host platform at a predetermined fixed distance from the master IMU, with the second inertial output data comprising a delta V and a delta theta. The first inertial output data is compared with the second inertial output data to determine a difference between the delta V of the first inertial output data and the delta V of the second inertial output data, and to determine a difference between the delta theta of the first inertial output data and the delta theta of the second inertial output data. The determined differences are applied to estimate inertial sensor errors in the remote IMU.

REFERENCES:
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patent: 7171303 (2007-01-01), Nordmark et al.
patent: 2005/0240347 (2005-10-01), Yang
patent: 2007/0032951 (2007-02-01), Tanenhaus et al.
patent: 2007/0100550 (2007-05-01), Hawkinson
patent: 2007/0240486 (2007-10-01), Moore et al.

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