System and method for determining an attitude of a device undergoing dynamic acceleration using a Kalman filter
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United States of America Patent
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Aug 20, 2013
Grant Date -
Jul 8, 2010
app pub date -
May 6, 2009
filing date -
Jan 7, 2009
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Abstract
A system, a computer readable storage medium including instructions, and a method for determining an attitude of a device undergoing dynamic acceleration. A difference between a first accelerometer measurement received from a first multi-dimensional accelerometer of the device and a second accelerometer measurement received from a second multi-dimensional accelerometer of the device is calculated. A Kalman gain is adjusted based on the difference, wherein the Kalman gain is used in a Kalman filter that determines the attitude of the device. An attitude of the device is determined using the Kalman filter based at least in part on the Kalman gain, the first accelerometer measurement, the second accelerometer measurement, and a magnetic field measurement received from a multi-dimensional magnetometer of the device.
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