Thursday, November 10, 2011

[android-developers] Re: Use the Gyroscope to improve the orientation

Hi,

I am only suggesting you use integration ( sum & 'average' last N
measurement over some short period of time ) for the compass/azimuth -
however you decide to get that data - just to smooth the data, so
these filtered reading don't jump around so much (this has got little
or nothing to do with accuracy of the sensors).

Then you might use the gyroscope &/or acceleration to detect relative
movement of the device, is it currently still or moving, to alter the
integration you are doing with the compass/azimuth, eg to reset or
change value of N mentioned. Kalman Filters are often mentioned here
as a solution http://en.wikipedia.org/wiki/Kalman_filter

If you want high accuracy you will probably need to use external high
accuracy IMU / compass sensor devices. Even then you won't necessarily
get around external magnetic interference.

Regards

On Nov 10, 10:17 pm, Ferro Francesco <ferro.france...@gmail.com>
wrote:
> I know what is an integration and How to do it. What I don't know it's what
> do I do with the result? How can i combine is with the compass value ?

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