On 05/11/2014 07:08 AM, joerg Reisenweber wrote:
On Sat 10 May 2014 11:57:30 Pascal Gosselin wrote:
calibrate the compass via GPS track by an easy calibration or
self-calibration method
GPS doesn't offer any data to calibrate magnetometer from.
magnetometer aka compass is about orientation
Indeed. When you taxi an airplane on the ground in a straight live or drive a
car in a straight line, GPS TRACK (adjusted for magnetic declination) =
Magnetic Heading.
The other complementary magnetometer calibration techniques involve driving
around in a full circle in about 60 to 75 seconds
On May 11, 2014, at 12:03 AM, Ben Wong lists.openmoko@wongs.net wrote:
Sounds like a fun challenge. I'd take it up if I wasn't already so
busy. After all, who in their life hasn't at one point wanted to write
an Unscented Kalman Filter? ;-)
Just out of curiosity, is OpenPilot.org
On Sun 11 May 2014 09:25:37 Pascal Gosselin wrote:
Indeed. When you taxi an airplane on the ground in a straight live or drive
a car in a straight line, GPS TRACK (adjusted for magnetic declination) =
Magnetic Heading.
The other complementary magnetometer calibration techniques involve
On 2014-05-11, 11:28 AM, joerg Reisenweber wrote:
This all assumes a locked and defined mounting situation for the magnetometer.
Then yes. For an embedded device however this method tells you nothing about
the magnetometer heading. The embedded device can change relative orientation
to the
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