Aiming at the problem of actual operation data of control loop and the mechanical system is complex

variable

unstable

non-linear

strong signal coupling and other issues

a new multi-dimensional signal decomposition method is proposed

called multi-dimensional intrinsic time scale decomposition（ MITD）. Algorithm steps are given

MITD is optimized to achieve better decomposition effect. Simulation analysis and actual industrial analysis show the superiority of MITD to multi-dimensional data decomposition.