Separation of combustion noise and piston-slap in diesel engine-Part II: Separation of combustion noise and piston-slap using blind source separation methods

This method is then applied to real data and the estimated sources are validated by several physical arguments. So, the contribution of the piston-slap and the combustion noise can be recovered for all the sensors. The energy of the two phenomena can then be given with regards to the position of the accelerometers.