I am trying to quantify the noise of the accelerometer inside the Parrot AR Drone 2.0, but the signal contains odd spikes. I simply placed the drone on a table and recorded the acceleration for about 30 seconds, without turning the rotors on. The measurements then produce the following image:
Without mean subtraction:
There seems to be a fairly horizontal line, that contains very large spikes (up to
+-0.1 m/s^2). This holds for all axes of the accelerometer. I expect some kind of normal distribution, but something odd is going on. Does anyone have any ideas? Simply removing the noise using filters is not what i'm looking for...