# Kalman Filter for position : introducing acceleration estimates

I want to estimate the position on a 3D environment by introducing only acceleration estimates. Is that possible? If I use the extended Kalman Filter and introduce these estimates will I have the appropriate results? Thank you in advance!

Eventhough it's sufficient to use those accelerations $$a_x$$, $$a_y$$, and $$a_z$$ on a cartesian coordinate system to compute the displacement associated with the center of mass of the craft that's moving in 3D, nevertheless you will also need to know the orientation of the craft (hence the accelerometer) so that you can transform its acc measurement vectors into the navigation frame correctly.