SYSTEMS AND METHODS FOR GYROCOMPASS ALIGNMENT USING DYNAMICALLY CALIBRATED SENSOR DATA AND AN ITERATED EXTENDED KALMAN FILTER WITHIN A NAVIGATION SYSTEM
First Claim
1. A navigation system for a mobile object comprising:
- an inertial measurement device configured to provide a first set of sensor data relating to operation of the mobile object;
a positioning unit configured to provide a second set of data relating to position of the mobile object; and
a processing device configured to receive the first and second data sets, the processing device configured to dynamically calibrate the received first data set, the processing device comprising a Kalman filter and further configured to generate a gyrocompass alignment using the first dynamically calibrated first data set, the second data set, and the Kalman filter.
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Accused Products
Abstract
A navigation system and method for gyrocompass alignment in a mobile object. The system includes an inertial measurement device configured to provide a first set of sensor data and a positioning unit configured to provide a second set of data. In an example embodiment, the navigation system includes a processing device configured to receive the data sets provided by the inertial measurement device and the positioning device, and the processing device is configured to dynamically calibrate the received first data set the processing device includes a Kalman filter, and the processing device is further configured to generate a gyrocompass alignment using the first dynamically calibrated first data set, the second data set, and the Kalman filter. The method includes receiving sensor data from a plurality of sensors, dynamically calibrating at least a portion of the sensor data, and generating gyrocompass alignment information based on the dynamically calibrated sensor data.
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Citations
18 Claims
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1. A navigation system for a mobile object comprising:
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an inertial measurement device configured to provide a first set of sensor data relating to operation of the mobile object; a positioning unit configured to provide a second set of data relating to position of the mobile object; and a processing device configured to receive the first and second data sets, the processing device configured to dynamically calibrate the received first data set, the processing device comprising a Kalman filter and further configured to generate a gyrocompass alignment using the first dynamically calibrated first data set, the second data set, and the Kalman filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for gyrocompass alignment, the method comprising:
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receiving sensor data from a plurality of sensors; dynamically calibrating at least a portion of the sensor data; and generating gyrocompass alignment information based on the dynamically calibrated sensor data. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification