Warranty after fix for GTA02 GPS rework for SD card interferenceissue

Vinc Duran uberpfloyd at gmail.com
Fri Aug 1 02:09:14 CEST 2008

On Thu, Jul 31, 2008 at 5:28 PM, Andreas Bogk <andreas at andreas.org> wrote:

> <snip>
> I'm not a mathematician, but I think I have sufficiently understood
> Kalman filters and dead reckoning.  A little known trick is to use
> ordinary integration with the strap-down equation given the
> accelerometer and gyro input, and have the Kalman filter model the error
> terms instead of the physical model state space.  This way, you only
> have to update the Kalman filter every time you get a GPS fix, not every
> time you get a measurement from the other sensors.
> But... what are our chances GTA03 will have a 3D gyro?
> Andreas

Could the accelerometers be substituted for a 3d gyro?
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