US 11,808,780 B1
Inertial sensor error modeling and compensation, and system for lifetime inertial sensor calibration and navigation enhancement
Carl A. Dins, Tempe, AZ (US); Markus Hans Gnerlich, Plymouth, MN (US); Patrick Duffy, Charlotte, NC (US); and Andrew Stewart, Chanhassen, MN (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Oct. 27, 2022, as Appl. No. 18/050,297.
Claims priority of provisional application 63/344,469, filed on May 20, 2022.
Int. Cl. G01P 21/00 (2006.01); G01P 1/00 (2006.01); G06N 3/044 (2023.01); G01P 15/08 (2006.01); G01P 15/14 (2013.01)
CPC G01P 21/00 (2013.01) [G01P 1/006 (2013.01); G01P 15/08 (2013.01); G01P 15/14 (2013.01); G06N 3/044 (2023.01)] 16 Claims
OG exemplary drawing
 
1. A system for inertial sensor calibration, the system comprising:
at least one chassis;
a sensor array embedded in the at least one chassis;
at least one payload coupled to the chassis, the at least one payload including one or more inertial sensors and one or more temperature sensors;
a processor in operative communication with the at least one payload and the sensor array;
at least one inertial sensor compensation module in operative communication with the processor, the at least one inertial sensor compensation module operative to perform inertial sensor error modeling and compensation; and
at least one lifetime thermal history unit in operative communication with the at least one payload and the sensor array, wherein the at least one lifetime thermal history unit operatively communicates with the at least one inertial sensor compensation module;
wherein the at least one lifetime thermal history unit is configured to permanently store a thermal history of the one or more inertial sensors, wherein the thermal history is used by the at least one inertial sensor compensation module to augment performance of the one or more inertial sensors by reducing bias drift.