From the pictures, have made an estimate, so use 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 image is then used to estimate the 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 shape coefficient is used 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.