I'm interested in applying inertial navigation over a very small range < 2 meters. Everything I have seen so far that is related to using inertial navigation for dead reckoning is for very large scales and gives accuracy on the order of fractions of miles or several feet. Does anyone know what type of accuracy to expect with only very small movements? The system that I'm envisioning would only apply dead reckoning for a few minutes within a space of 2 meters and then be zeroed before the next application. Any information would be very helpful.