公开(公告)号：US11047682B2

公开(公告)日：2021-06-29

申请号：US15523908

申请日：2014-11-11

Applicant: Intel Corporation

Inventor： Ke Han ,  He Han ,  Zhifeng Wang ,  Feng Xu

IPC: G01C17/38 ,  G01R33/00 ,  G01C25/00 ,  G01R33/028 ,  G01C19/56 ,  G01R33/022

Abstract: Systems and methods may provide for obtaining first sensor data associated with a gyroscope and obtaining second sensor data associated with a magnetometer. Additionally, the first sensor data, the second sensor data and an extended Kalman filter may be used to calibrate the magnetometer. In one example, a sampling rate of the magnetometer is increased before obtaining the second sensor data and the sampling rate of the magnetometer is decreased after calibration of the magnetometer.

公开(公告)号：US20170343349A1

公开(公告)日：2017-11-30

申请号：US15523908

申请日：2014-11-11

Applicant: Intel Corporation

Inventor： Ke Han ,  He Han ,  Zhifeng Wang ,  Feng Xu

IPC: G01C17/38 ,  G01R33/00 ,  G01C25/00 ,  G01R33/028 ,  G01C19/56

CPC classification number: G01C17/38 ,  G01C19/56 ,  G01C25/005 ,  G01R33/00 ,  G01R33/0035 ,  G01R33/022 ,  G01R33/028

Abstract: Systems and methods may provide for obtaining first sensor data associated with a gyroscope and obtaining second sensor data associated with a magnetometer. Additionally, the first sensor data, the second sensor data and an extended Kalman filter may be used to calibrate the magnetometer. In one example, a sampling rate of the magnetometer is increased before obtaining the second sensor data and the sampling rate of the magnetometer is decreased after calibration of the magnetometer.