From the picture, it makes it possible to estimate using the averagefilter to estimate the accelerometer using 3 parameters, which is similar to the experimental value, but at the moment the 6-12 slightly down to 1-2 degrees.
The figure has been estimated using averagefilter. To estimate the accelerometer using three parameters which will be similar to the first trial, but the 6-12 in the period, a slight decrease 1-2 degrees.
From the pictures were estimated using averagefilter. For the estimation of parameters accelerometer using 3 system which is similar to the experiment 1 but value in time 6 - 12 decreased slightly 1-2 degrees.