Improved algorithm for empirical mode decomposition with independent elements
Hong Li · Ha'erbin gongye daxue xuebao · 2009
To solve the problem that the elements may be redundancies in the algorithm of empirical mode decomposition,the theory of independent component analysis was introduced into the empirical mode decomposition to improve the algorithm.Thus the elements are orthogonal to each other and the decomposition redundance can be cut down.Then the signal components can be expressed accurately.Simulation results show that the improved algorithm is better than common algorithms of empirical mode decomposition.The intrinsic mode function is independent to each other and the redundancies are eliminated.So the component,such as pulse or step in periodic signal,can be expressed by a single decomposition element.It is indicated that the improved algorithm has good foreground in many project fields.