It is possible to do what you ask for, provided that you spend very short time moving,
and that you calibrate your zero very careful before you start.
You need to integrate X,Y, and Z twice to get 3D position. and a bad zero calibration
will make your position useless in a few seconds even when zero is very accurate.
The noise will create a random walk behaviour, and unfortunately, the integral of gaussian noise is
not zero over time. I have a small VB application that simulates movement in ONE axis under influence of noise.
You can have that if you like.
/Per
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