Difference between revisions of "Compass"
(Created page with "The Compass internally utilizes the accelerometer and magnetometer to estimate the device orientation in relation to the magnetic north. As the compass is vulnera-ble to exter...") |
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• Provides orientation in world coordinate system. | • Provides orientation in world coordinate system. | ||
| − | • The error in orientation estimation is characterized by an offset between real and estimated device orientation. Typically an accuracy of 10-20° is achieved. In the presence of strong | + | • The error in orientation estimation is characterized by an offset between real and estimated device orientation. Typically an accuracy of 10-20° is achieved. |
| − | + | In the presence of strong magnetic fields orientation estimation is unusable. | |
• Pose estimation suffers from noticeable jitter if Compass is used as the only orientation source. | • Pose estimation suffers from noticeable jitter if Compass is used as the only orientation source. | ||
• The orientation is updated with roughly 250Hz. | • The orientation is updated with roughly 250Hz. | ||
• Orientation estimation is not responsive and suffers from noticeable delays. | • Orientation estimation is not responsive and suffers from noticeable delays. | ||
• Requires accelerometer and magnetometer. | • Requires accelerometer and magnetometer. | ||
Revision as of 11:47, 19 September 2017
The Compass internally utilizes the accelerometer and magnetometer to estimate the device orientation in relation to the magnetic north. As the compass is vulnera-ble to external influences, it is recommended to disable the Compass in the pres-ence of strong magnetic fields.
Characteristics
• Provides orientation in world coordinate system.
• The error in orientation estimation is characterized by an offset between real and estimated device orientation. Typically an accuracy of 10-20° is achieved.
In the presence of strong magnetic fields orientation estimation is unusable.
• Pose estimation suffers from noticeable jitter if Compass is used as the only orientation source.
• The orientation is updated with roughly 250Hz.
• Orientation estimation is not responsive and suffers from noticeable delays.
• Requires accelerometer and magnetometer.
